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λ€κ°ν Pμ κΌμ§μ μ΄ (β2, β4), (β4, 1), (β1, 4), (2, 4) λ° (3, 0)μΈ κ²½μ°, y = x λΌμΈμ κΈ°μ€μΌλ‘ λ°μ¬νμ¬ μλ‘μ΄ λ€κ°ν Pβμ μ»μΌλ©΄ Pβμ κΌμ§μ μ€ νλλ λ€μ μ€ μ΄λμ
λκΉ?
|
(0, β3)
|
(4, 1)
|
(2, 2)
|
(β4, β2)
| 4
|
high_school_mathematics
| 0
|
μ¬κ°νμ κΈΈμ΄λ λλΉμ λ λ°°μ
λλ€. λκ°μ μ κΈΈμ΄κ° $5\sqrt{5}$ μΌ λ, μ΄ μ¬κ°νμ λμ΄λ₯Ό μ°ΎμΌμμμ€.
|
2500
|
2
|
50
|
25
| 3
|
high_school_mathematics
| 1
|
μμ°μ nμ΄ "κ°λ ₯ν" μμΈ κ²½μ°, nμ λͺ¨λ μμΈμ pμ λν΄ p^2λ nμ μΈμμ΄λ©΄ "κ°λ ₯ν" μλΌκ³ ν©λλ€. κ°λ ₯ν μμ μλ λ€μκ³Ό κ°μ΅λλ€.
|
392
|
336
|
300
|
297
| 1
|
high_school_mathematics
| 2
|
μμΉ¨, μ μ¬, μ λ
μ μ‘°λ μ¬κ³Ό, μ€λ μ§, λ°λλ μ€ νλλ₯Ό λλ€μΌλ‘ κ³¨λΌ λ¨Ήμ΅λλ€. μ΄λ λ , μ‘°κ° μ μ΄λ λ μ’
λ₯ μ΄μμ κ³ΌμΌμ λ¨Ήμ νλ₯ μ 무μμ
λκΉ?
|
\frac{7}{9}
|
\frac{8}{9}
|
\frac{5}{9}
|
\frac{9}{11}
| 2
|
high_school_mathematics
| 3
|
$f(x)$κ° λ€μκ³Ό κ°μ νΉμ±μ κ°μ§ ν¨μμ΄λ€. λͺ¨λ $a<b$μΈ $a$μ $b$μ λνμ¬, $y=f(x)$ κ·Έλνμ $x=a$μ $x=b$μ¬μ΄μ μΌλΆλ λ μ $(a,f(a))$μ $(b,f(b))$λ₯Ό λμ μΌλ‘ νλ μ λΆ μλμ μλ€. (μ΄λ¬ν νΉμ±μ κ°μ§ ν¨μλ₯Ό μλ°νκ² λ³Όλ‘ ν¨μλΌκ³ νλ€.) $(-2,5)$μ $(2,9)$λ₯Ό μ§λλ $f(x)$κ° μ£Όμ΄μ‘μ λ, κ°λ₯ν λͺ¨λ $f(1)$ κ°μ λ²μλ 무μμΈκ°? λ΅μ κ΅¬κ° νκΈ°λ²μΌλ‘ νμνλΌ.
|
(-inf, 10)
|
(-inf, 9)
|
(-inf, 8)
|
(-inf, 7)
| 3
|
high_school_mathematics
| 4
|
μ‘΄μ κΈ°λ
μ© λͺ¨μνμ λ λ¬ΆμμΌλ‘ λλμλ€. λ λ¬Άμμ νμ μκ° κ°μλ€. κ·Έλ νμκ² ν λ¬Άμμ 1/3μ λ°μΌλ‘ λλμ΄ μ£Όμλ€. μ‘΄μ 66κ°μ νμ΄ λ¨μλ€. μ‘΄μ΄ μ²μμ λͺ κ°μ νμ κ°μ‘λμ?
|
396
|
72
|
66
|
36
| 2
|
high_school_mathematics
| 5
|
κΈ°μνμλ λΉμ νμμ΄ μλ νλ₯ μ΄ 30%λΌκ³ λ³΄κ³ νμ΅λλ€. λΉκ° μ€μ§ μμ νλ₯ μ΄ 40%μ΄λ©΄, λΉμ νμμ΄ λͺ¨λ μλ νλ₯ μ?
|
0.16
|
0.24
|
0.3
|
0.5
| 3
|
high_school_mathematics
| 6
|
$n^2$κ° 1200μ μΈμμΈ λͺ¨λ μμ μ μ $n$μ ν©μ?
|
42
|
12
|
36
|
39
| 1
|
high_school_mathematics
| 7
|
6면체 μ£Όμ¬μλ₯Ό 5λ² κ΅΄λ¦½λλ€. μ΄ μ€ μ΅λ 2λ²μ κ΅΄λ¦Όμμ 6μ΄ λμ¬ νλ₯ μ μΌλ§μ
λκΉ?
|
\frac{125}{648}
|
\frac{25}{648}
|
\frac{625}{648}
|
\frac{1}{648}
| 3
|
high_school_mathematics
| 8
|
240μ ν©νλ μ°μνλ νμ μ μλ€μ μ°μ μ°μλ€μ λͺ κ°μΈκ°μ?
|
8
|
12
|
10
|
4
| 2
|
high_school_mathematics
| 9
|
μμ μ μ $x$μ $y$λ κ³±μ΄ 56μ΄κ³ $x < y$μ΄λ€. μμ μ μμ μμλ₯Ό 7λ°° ν κ°κ³Ό ν° μ μμ μμλ₯Ό 14λ°° ν κ°μ λνλ©΄ 4κ° λλ€. $x$μ κ°μ 무μμΈκ°?
|
13
|
14
|
1
|
2
| 4
|
high_school_mathematics
| 10
|
$n > 1$μΌ λ, μμ μ½μμ κ³±μ΄ $n^6$μΈ κ°μ₯ μμ μμ μ μ $n$μ 무μμ
λκΉ?
|
30
|
64
|
2048
|
60
| 4
|
high_school_mathematics
| 11
|
$2^{87}+3$μ 7λ‘ λλλ©΄ λλ¨Έμ§λ 무μμ
λκΉ?
|
0
|
1
|
2
|
4
| 4
|
high_school_mathematics
| 12
|
μ μΈμ μν μ μκ° 98, 97, 92, 85 λ° 93μ΄μμ΅λλ€. νκ· μ μλ μΌλ§μ
λκΉ?
|
92
|
93
|
94.5
|
95
| 2
|
high_school_mathematics
| 13
|
fμ κ·Έλνκ° a <= x <= bμμ μ¦κ°νκ³ μλ‘ λ³Όλ‘ν κ²½μ°, λμΌν λΆν μλ₯Ό μ¬μ©νκ³ L, R, M λ° Tκ° κ°κ° μΌμͺ½, μ€λ₯Έμͺ½, μ€κ° λ° μ¬λ€λ¦¬κΌ΄ ν©κ³λ₯Ό λνλ΄λ©΄ λ€μμ΄ μ±λ¦½ν©λλ€.
|
R <= T <= M <= L
|
L <= T <= M <= R
|
R <= M <= T <= L
|
L <= M <= T <= R
| 4
|
high_school_mathematics
| 14
|
κ°λ―Έκ° (-4,6)μμ μΆλ°νμ¬ μμ μΌλ‘ μ§μ§νκ³ , κ·Έ ν (4,3)μΌλ‘ μ§μ§ν©λλ€. κ°λ―Έκ° μ΄λν 거리λ μΌλ§μΈκ°μ?
|
16
|
2\sqrt{2}
|
5
|
5+2\sqrt{13}
| 4
|
high_school_mathematics
| 15
|
$n$μ λ κ°μ 3μ리 μμμ κ³±μ΄λ€. $n$μ μλ¦Ώμ ν©μ ꡬνμμ€.
|
8
|
3
|
6
|
9
| 1
|
high_school_mathematics
| 16
|
$(x^2+5x+6)^2+(px+q)(x^3+7x^2+3x)$μ μ κ° κ²°κ³Όλ‘ λμ€λ λ€νμμ μ°¨μκ° $2$μ΄λ€. $p+q$ κ°μ ꡬνμμ€.
|
-2
|
-4
|
-1
|
1
| 2
|
high_school_mathematics
| 17
|
$f(x)=ax^6-bx^4+x-1$μ΄κ³ $f(2)=5$μΌ λ, $f(-2)$μ κ°μ 무μμΈκ°μ?
|
1
|
3
|
0
|
5
| 1
|
high_school_mathematics
| 18
|
$f(x) = \frac{1}{1-x}$ ν¨μμ μ μμμ?
|
(-\infty,-1)\cup (1,\infty)
|
(-\infty,0)\cup (0,\infty)
|
[-1,1]
|
(-1,1)
| 2
|
high_school_mathematics
| 19
|
$f(x)=4-5x$μ μν¨μλ 무μμΈκ°μ?
|
\frac{5}{x-4}
|
\frac{x-4}{5}
|
\frac{x+4}{5}
|
-\frac{x-4}{5}
| 4
|
high_school_mathematics
| 20
|
첫째 νμ΄ 2μ΄κ³ λ€μ νμ μμ νμ -2λ₯Ό κ³±ν μμ΄μμ 5λ²μ§Έ νμ?
|
β16
|
32
|
β32
|
64
| 2
|
high_school_mathematics
| 21
|
4κ°μ κ΅¬λ³ κ°λ₯ν 곡μ κ΅¬λ³ λΆκ°λ₯ν 2κ°μ μμμ μ΄λ»κ² λ£μ μ μλμ?
|
7κ°μ§
|
11κ°μ§
|
16κ°μ§
|
8κ°μ§
| 4
|
high_school_mathematics
| 22
|
120κ³Ό 40μ μ½μμΈ μμ μ μλ λͺ κ°μ
λκΉ?
|
4
|
8
|
2
|
1
| 2
|
high_school_mathematics
| 23
|
μΉΌλ‘μ€ λͺ¬νλλ 2002λ
11μ 9μΌ ν μμΌμ νμ΄λ¬μ΅λλ€. μΉΌλ‘μ€κ° 706μΌμ΄ λλ λ μ λ¬΄μ¨ μμΌμ
λκΉ? (μμΌμ μ 체μ μΌλ‘ μ μ΄μ£Όμμμ€.)
|
κΈμμΌ
|
λͺ©μμΌ
|
μμμΌ
|
νμμΌ
| 1
|
high_school_mathematics
| 24
|
κΈ°νΈ $5!$μ $5\cdot4\cdot3\cdot2\cdot1$μ μλ―Έν©λλ€. $5!$μ μ½μ μ€ κ°μ₯ ν° νμ μ μλ 무μμΈκ°μ?
|
5
|
3
|
15
|
31
| 3
|
high_school_mathematics
| 25
|
ννμ¬λ³ν $ABCD$μμ, κ° $B$λ $110^\circ$μ
λλ€. κ° $C$μ κ°λλ λͺ λμ
λκΉ?
|
145
|
90
|
60
|
70
| 4
|
high_school_mathematics
| 26
|
λ¬Ό ν±ν¬μμ μ€μΌλ¬Όμ§μ μ κ±°νλ μ ν κ³Όμ μ μλλ λ¨μ μλ μ€μΌλ¬Όμ§μ μμ λΉλ‘ν©λλ€. κ³Όμ μμ 1λΆ λμ μ€μΌλ¬Όμ§μ 20%κ° μ κ±°λ μ μμΌλ©°, λ¬Όμ μμ νκ² λ§λ€κΈ° μν΄μλ 98%λ₯Ό μ κ±°ν΄μΌν©λλ€. μ΄ λ
μ± μ κ±° κ³Όμ μ΄ μΌλ§λ 걸릴κΉμ?
|
2 λΆ
|
5 λΆ
|
18 λΆ
|
20 λΆ
| 3
|
high_school_mathematics
| 27
|
$f(x)=\frac{x+6}{\sqrt{x^2-3x-4}}$ ν¨μμ μ μμμ 무μμΈκ°μ?
|
(-4,4)
|
[0,4]
|
(-무νλ, -1) U (4, 무νλ)
|
(-무νλ, -1) U (-1, 4) U (4, 무νλ)
| 3
|
high_school_mathematics
| 28
|
ν¨μ y = (ln x)/xμ κ·Ήλκ°μ?
|
1
|
e
|
2/e
|
1/e
| 4
|
high_school_mathematics
| 29
|
$1 \cdot 2 \cdot 3 \cdot 4 \cdot 5 \cdot 6 \cdot 7 \cdot 8 \cdot 9$μ μΌμ μ리μλ 무μμΈκ°μ?
|
1
|
2
|
0
|
5
| 3
|
high_school_mathematics
| 30
|
μμ μΌλ‘λΆν° $x^2-24x+y^2+10y+160=0$μΌλ‘ μ μλ μκΉμ§μ μ΅λ¨ 거리λ μΌλ§μΈκ°μ?
|
10
|
16
|
24
|
12
| 1
|
high_school_mathematics
| 31
|
16, 15, 12μ μΈμλ₯Ό κ°λ κ°μ₯ μμ μμ μ μλ 무μμΈκ°μ?
|
12
|
22
|
840
|
240
| 4
|
high_school_mathematics
| 32
|
53μ₯μ νμ€ μΉ΄λ λ±μμ μλ‘ λ€λ₯Έ λͺ¨μμ μΉ΄λ 3μ₯μ μ ννλ λ°©λ²μ λͺ κ°μ§μΈκ°μ? (μΉ΄λμ μμλ μ€μνμ§ μλ€κ³ κ°μ ν©λλ€.)
|
8788
|
2
|
2197
|
21
| 1
|
high_school_mathematics
| 33
|
λ°©μ μ $x^2+12y+57=-y^2-10x$μ μ $C$κ° μλ€. $(a,b)$κ° $C$μ μ€μ¬μ΄κ³ , $r$μ΄ $C$μ λ°μ§λ¦μΌ λ, $a+b+r$μ κ°μ?
|
-9
|
-5
|
-6
|
-57
| 1
|
high_school_mathematics
| 34
|
$y=f(x)$ κ·Έλνκ° $(1,5),$ $(2,3),$ $(3,1)$μ μ μ ν¬ν¨νλ€κ³ κ°μ ν΄λ³΄μ. μ΄ μ 보λ§μΌλ‘, $y=f(f(x))$ κ·Έλν μμ λ°λμ μμ΄μΌ νλ λ μ μ $(a,b)$ λ° $(c,d)$μ
λλ€. κ·Έ κ²½μ° $ab+cd$λ μΌλ§μ
λκΉ?
|
15
|
5
|
9
|
17
| 4
|
high_school_mathematics
| 35
|
$\dbinom{85}{82}$λ₯Ό κ³μ°νλΌ.
|
252
|
4680
|
98770
|
101170
| 3
|
high_school_mathematics
| 36
|
ν μ₯μ 8.5x11μΈμΉ μ’
μ΄λ₯Ό μ μ λ, κΈ΄ λ³μ μ μ΄ μ§§μμ§κ² λ°λ³΅νμ¬ μ μ΅λλ€. λ λ²μ§Έ μ κΈ° ν μ¦μ κ°μ₯ κΈ΄ λ³μ κΈΈμ΄λ λͺ μΈμΉμΈκ°μ? μμμ 첫째μ리μμ λ°μ¬λ¦Όνμ¬ λ΅νμΈμ.
|
4.5
|
1
|
5.5
|
5
| 3
|
high_school_mathematics
| 37
|
16, 15, 12μ μ½μλ₯Ό κ°μ§λ κ°μ₯ μμ μμ μ μλ 무μμΈκ°μ?
|
240
|
120
|
60
|
111
| 1
|
high_school_mathematics
| 38
|
$\binom{23}{4} + \binom{23}{5} = \binom{24}{k}$ μΌ λ, λͺ¨λ μ μ $k$ μ ν©μ ꡬνμμ€.
|
24
|
5
|
3
|
21
| 1
|
high_school_mathematics
| 39
|
$888x + 889y = 890$ μ΄κ³ $891x + 892y = 893$ μΌ λ, $x-y$μ κ°μ?
|
1
|
-3
|
-1
|
3
| 2
|
high_school_mathematics
| 40
|
μ£Όμ΄μ§ μμ μμΈμλ 2, 5, 7, 13, 31μ
λλ€. μ΄ μμ μ½μλ λ€μ μ€ μ΄λ€ κ²μ΄μ΄μΌ ν©λκΉ?
|
4
|
6
|
10
|
15
| 3
|
high_school_mathematics
| 41
|
ν κ·Έλ£Ήμ μ¬λλ€μ΄ μ’
μ΄μ 12345.6789λ₯Ό μ μμ΅λλ€. κ·Έλ¦¬κ³ μ΄ κ·Έλ£Ήμ κ²μμ νκΈ°λ‘ κ²°μ νμ΅λλ€. μ΄ κ²μμ μΉμλ μ£Όμ΄μ§ μ«μλ₯Ό λ°μ¬λ¦Όνμ¬ λ€λ₯Έ μ¬λλ³΄λ€ λ λμ μ«μλ₯Ό μ»μ μ μλ μ¬λμ
λλ€. μ¨λ¦¬μ€λ λ§μ κ°μ₯ κ°κΉμ΄ μλ‘, λ°₯μ μ²μ κ°κΉμ΄ μλ‘, μΊλ‘€μ λ°±μ κ°κΉμ΄ μλ‘, λ°λ³΄λ μμ κ°κΉμ΄ μλ‘, κ·Έλ¦¬κ³ μ μ§μ μ μμ κ°κΉμ΄ μλ‘ λ°μ¬λ¦Όν©λλ€. λν, ν 리μν°λ μμμ 첫째 μ리μ κ°κΉμ΄ μλ‘, μ λλλ μμμ λμ§Έ μ리μ κ°κΉμ΄ μλ‘, ν΄λ¦¬λ μμμ μ
μ§Έ μ리μ κ°κΉμ΄ μλ‘, κ·Έλ¦¬κ³ μμ΄λ¦°μ μμμ λ·μ§Έ μ리μ κ°κΉμ΄ μλ‘ λ°μ¬λ¦Όν©λλ€. μ΄ κ²μμμ λκ° μ΄κΈΈκΉμ?
|
μ¨λ¦¬μ€
|
λ°λ³΄
|
λ°₯
|
μ λλ
| 2
|
high_school_mathematics
| 42
|
36-9x^2μ μΈμλ 무μμΈκ°μ?
|
(6-3x)(6+3x)
|
(-3x+6)(3x+6)
|
9(2-x)(2+x)
|
3(2+x)^2
| 3
|
high_school_mathematics
| 43
|
κΈΈμ 첫 λ²μ§Έ ν¬μ₯ λμ λμΌλ €λ©΄, μλ μ€λ λ μμμμ μμνμ¬ 3νΌνΈλ₯Ό κ±Έμ΄ λμ λκ³ μμλ‘ λμκ°λλ€. κ°κ°μ λ€μ λμ λν΄, μλ μ€λ μ볡ν λλ§λ€ 2νΌνΈμ© λ κ±Έμ΄κ°λλ€. μλ μ€λ κΈΈμ 첫 50κ° λμ λμ κ²μ
λλ€. 50λ²μ§Έ λμ λκ³ μμλ‘ λμμ¨ ν, μλ μ€κ° κ±Έμ μ΄ κ±°λ¦¬λ λͺ νΌνΈμ
λκΉ?
|
100
|
90950
|
5200
|
50
| 3
|
high_school_mathematics
| 44
|
μμ μμ ν° κ΅¬μ¬ 4κ°μ κ²μ κ΅¬μ¬ 4κ°κ° λ€μ΄μμ΅λλ€. λλ ν λ²μ νλμ© κΊΌλ΄λ΄
λλ€. λ΄κ° λΉκ²¨ λ³Ό λ λͺ¨λ λΉμ²¨λ²νΈκ° λ²κ°μ κ°λ©΄μ λμ€λ νλ₯ μ μΌλ§μ
λκΉ?
|
\frac{1}{8}
|
\frac{1}{7}
|
\frac{1}{40}
|
\frac{1}{35}
| 4
|
high_school_mathematics
| 45
|
μλ¦Ώμ ν©μ΄ $19$κ° λλ κ°μ₯ μμ μμλ 무μμΈκ°μ?
|
5
|
11
|
17
|
199
| 4
|
high_school_mathematics
| 46
|
ν¨μ $h(x) = \sqrt{25-x^2}+\sqrt{-(x-2)}$μ μ μμμ μ΄λ λ²μμ κ°κ²©μ κ°λκ°?
|
7
|
5
|
2
|
25
| 1
|
high_school_mathematics
| 47
|
μ‘΄μ μ λ¬Όμ© λͺ¨μ νλ€μ λ κ·Έλ£ΉμΌλ‘ λλμμ΅λλ€. μ΄ λ κ·Έλ£Ήμ νμ μκ° λμΌν©λλ€. κ·Έλ νμ μκ² κ·Έ μ€ ν κ·Έλ£Ήμ 1/3μ 1/2 μ£Όμμ΅λλ€. μ‘΄μ΄ λ¨κΈ΄ νμ 66κ°μ
λλ€. μ‘΄μ μλ λͺ κ°μ νμ κ°μ§κ³ μμμ΅λκΉ?
|
792
|
66
|
396
|
72
| 4
|
high_school_mathematics
| 48
|
$f(x) = 8x^3 - 6x^2 - 4x + 5$μΌ λ, $f(-2)$μ κ°μ?
|
5
|
-75
|
-64
|
-24
| 2
|
high_school_mathematics
| 49
|
μ μ¬ μκ° λμ λμ νλμ ν λκ°λ‘, Busywork μ μλμ μμ μ λ° νμλ€μκ² $\frac{1}{3}$μ 10μ κ³±ν΄μ 5λ²μ νλλ‘ νμ΅λλ€. κ·Έλ¬λ Johnμ λ¨μΌ λΆμλ‘ 10μ κ³±ν΄μ λ€λ₯Έ νμλ€κ³Ό λμΌν λ΅μ μ»μ μ μλ€λ κ²μ μμμ±λλ€. μ΄ λ¨μΌ λΆμλ 무μμΈκ°μ?
|
\frac{1}{27}
|
\frac{1}{68}
|
\frac{1}{3}
|
\frac{1}{243}
| 4
|
high_school_mathematics
| 50
|
μ΄λ€ ν¨μ $y=f(x)$ μ κ·Έλνκ° μ€λ₯Έμͺ½μΌλ‘ 20 λ¨μ μ΄λλλ©΄ κ²°κ³Ό κ·Έλνκ° μλ³Έ κ·Έλν $y=f(x)$ μ λμΌν μμ±μ κ°λ κ²½μ°κ° μλ€. λ§μ½ $y=f\left(\frac x5\right)$ μ κ·Έλνκ° $a$ λ¨μ μ€λ₯Έμͺ½μΌλ‘ μ΄λλλ©΄ κ²°κ³Ό κ·Έλνκ° μλμ $y=f\left(\frac x5\right)$ κ·Έλνμ λμΌν¨μ μ μ μλ κ°μ₯ μμ μμ $a$ λ 무μμ
λκΉ?
|
100
|
4
|
5
|
20
| 1
|
high_school_mathematics
| 51
|
λΆλͺ¨μ $2,3,4,$ λλ $6,$ λΆμμ $2,3,4,$ λλ $6$μ μ¬μ©νμ¬ λΆμλ₯Ό λ§λ€ λ λ§λ€ μ μλ κ³ μ ν μλ λͺ κ°μΈκ°μ?
|
1
|
9
|
2
|
10
| 2
|
high_school_mathematics
| 52
|
νμ€μΉΌμ μΌκ°νμμ 43κ°μ μ«μκ° μλ νμμ λ λ²μ§Έ μ«μλ 무μμ
λκΉ?
|
43
|
16
|
42
|
44
| 3
|
high_school_mathematics
| 53
|
ν¨νΈλ¦ μ¨λ μμ μ μμ
μ μν΄ λ€μ― λ¬Ένμ μ°Έ/κ±°μ§ ν΄μ¦λ₯Ό μ€λΉνκ³ μμ΅λλ€. 첫 λ²μ§Έ λ¬Ένμ μ°κΈ° μ μ μ½μΈμ λμ Έ, λ§μ½ μλ©΄μ΄ λμ€λ©΄ μ°ΈμΈ λ¬Έμ₯μ μ°κ³ λ·λ©΄μ΄ λμ€λ©΄ κ±°μ§μΈ λ¬Έμ₯μ μ μ΅λλ€. κ·Έλ μ΄μ κ°μ λ°©μμΌλ‘ λ€μ― λ¬Έμ₯μ λͺ¨λ μμ±ν©λλ€. μ λ΅ μμκ° TFTFTμΌ νλ₯ μ μΌλ§μ
λκΉ? λΆμ ννλ‘ λ΅νμκΈ° λ°λλλ€.
|
\frac{1}{6}
|
\frac{1}{64}
|
\frac{1}{32}
|
\frac{1}{2}
| 3
|
high_school_mathematics
| 54
|
$f(x)=\frac{(x-2)^2-9}{3}$ μΌ λ, λ°©μ μ $y=f(x)$μ κ·Έλνκ° κ·Έλ €μ§κ³ , κ·Έλνμ $x$-μ νΈκ³Ό $y$-μ νΈμ΄ μ°κ²°λμ΄ λ€κ°νμ μ΄λ£Ήλλ€. κ·Έ λ€κ°νμ λμ΄λ?
|
5
|
\frac{25}{6}
|
\frac{\sqrt{2465}}{9}
|
2
| 1
|
high_school_mathematics
| 55
|
$\log_{b}343=-\frac{3}{2}$μΌ λ $b$μ κ°μ?
|
3
|
\frac{1}{49}
|
\frac{1}{7}
|
7
| 2
|
high_school_mathematics
| 56
|
μΌκ°νμ κ°μ₯ κΈ΄ λ³μ 10μ΄λ€. λ€μ μ€ λ€λ₯Έ λ λ³μ κΈΈμ΄λ‘ λμ¬ μ μλ κ²μ?
|
4, 7
|
5, 5
|
3, 9
|
9, 8
| 2
|
high_school_mathematics
| 57
|
λ μ μμ μ΅μ곡배μλ 240μ΄κ³ , μ΅λ곡μ½μλ 24μ
λλ€. λ μ μ€ νλκ° 48μ΄λΌλ©΄, λ€λ₯Έ μλ 무μμ
λκΉ?
|
1
|
120
|
20
|
12
| 2
|
high_school_mathematics
| 58
|
$3^{x^2+4x+4}=9^{x+2}$ μΌ λ, κ°λ₯ν λͺ¨λ $x$ κ°μ ν©μ ꡬνμμμ€.
|
1
|
2
|
-2
|
0
| 3
|
high_school_mathematics
| 59
|
λ°°μμ‘μ μλ λ°ν
리μλ νμ¬ μλ μμ λΉλ‘νμ¬ μ¦κ°ν©λλ€. μ΄κΈ° μΈκ΅¬κ° 200 λ§λ¦¬μκ³ , 10μκ° νμλ 3λ°°λ‘ λμ΄λ¬μ΅λλ€. μ΄ μ¦κ° ν¨ν΄μ΄ κ³μλλ©΄, νλ£¨κ° μ§λ ν λλ΅μ μΌλ‘ λ°ν
리μμ μλ
|
1160
|
1440
|
2408
|
2793
| 4
|
high_school_mathematics
| 60
|
xμ yκ° μ§μ λΉλ‘νλ©°, x = 3 μΌ λ y = 8 μΈ κ²½μ°, y = 13 μΌ λ xμ κ°μ 무μμ
λκΉ?
|
0.615
|
4.875
|
15
|
34.667
| 2
|
high_school_mathematics
| 61
|
f(x) = x^3 + 2x^2 - 9x - 18 μΌ λ, λ€μ μ€ μ°ΈμΈ κ²μ 무μμ
λκΉ?
|
f(x) = 0μ μ€κ·Ό 3κ°λ₯Ό κ°μ§λ€.
|
x β₯ 0 μΈ λͺ¨λ xμ λν΄ f(x) β₯ -18 μ΄λ€.
|
x β€ 0 μΈ λͺ¨λ xμ λν΄ f(x) β€ -18 μ΄λ€.
|
x β€ -3 μΌ λ, ν¨μ f(x)λ κ°μνλ€.
| 1
|
high_school_mathematics
| 62
|
μν€μ κ°λ―Έ λμ₯μμ Aμ’
κ³Ό Bμ’
μ λ μ’
λ₯μ κ°λ―Έκ° μλ€. λ μ’
λ₯λ μΈλͺ¨κ° κ°μ§λ§, μν€μ λ§€μΌ Aμ’
μ κ°λ―Έκ° μ΄μ λ³΄λ€ λ λ°° λ λ§κ³ , Bμ’
μ κ°λ―Έλ μ΄μ λ³΄λ€ μΈ λ°° λ§λ€λ κ²μ μκ³ μλ€. Day 0μ, μν€μ κ°λ―Έ λμ₯μ 30λ§λ¦¬μ κ°λ―Έκ° μλ€λ κ²μ μΌλ€. Day 5μ, μν€μ κ°λ―Έ λμ₯μ 3281λ§λ¦¬μ κ°λ―Έκ° μλ€λ κ²μ μΌλ€. μ΄ μ€ λͺ κ°κ° Aμ’
μΈκ°?
|
211
|
2321
|
11
|
608
| 4
|
high_school_mathematics
| 63
|
λ°©μ μ $|x-4| -10 = 2$μμ κ°λ₯ν λͺ¨λ $x$κ°μ κ³±μ?
|
-8
|
128
|
-128
|
16
| 3
|
high_school_mathematics
| 64
|
7κ° μ«μμ νκ· μ 15μ
λλ€. 8λ²μ§Έ μ«μλ₯Ό μΆκ°νλ©΄ νκ· μ΄ 12λ‘ κ°μν©λλ€. 8λ²μ§Έ μ«μλ 무μμΈκ°μ?
|
β12
|
β9
|
0
|
8
| 2
|
high_school_mathematics
| 65
|
3^(x β 3) + 10 = 19 μΌ λ, x μ κ°μ?
|
3
|
4
|
5
|
6
| 3
|
high_school_mathematics
| 66
|
$f(x)$κ° μ°¨μκ° 6μΈ λ€νμμ΄κ³ $g(x)$κ° μ°¨μκ° 3μΈ λ€νμμ΄λΌλ©΄, $f(g(x))+g(h(x))+h(f(x))$κ° μ°¨μκ° 36μΈ λ€νμμ΄ λλ λ€νμ $h(x)$μ μ°¨μλ?
|
72
|
6
|
18
|
12
| 2
|
high_school_mathematics
| 67
|
μ $(x,y)$μ΄ κΌμ§μ μ΄ $(0,0)$, $(3,0)$, $(3,2)$, $(0,2)$μΈ μ§μ¬κ°ν μμμ 무μμλ‘ μ νλμμ΅λλ€. $x < y$μΌ νλ₯ μ μΌλ§μΈκ°μ?
|
\frac{1}{12}
|
\frac{1}{6}
|
\frac{2}{3}
|
\frac{1}{3}
| 4
|
high_school_mathematics
| 68
|
λ‘μ¦λ¦°μ μμ 20κ°λ₯Ό κ°μ§κ³ μμ΅λλ€. κ·Έμ€ 13κ°μ μμμλ μ°νμ΄ λ€μ΄ μκ³ , 9κ°μ μμμλ νμ΄ λ€μ΄ μμΌλ©°, 3κ°μ μμμλ νκ³Ό μ°ν λͺ¨λ λ€μ΄μμ§ μμ΅λλ€. νκ³Ό μ°νμ΄ λͺ¨λ λ€μ μμλ λͺ κ°μΈκ°μ?
|
5
|
2
|
13
|
139
| 1
|
high_school_mathematics
| 69
|
νμ μλ¦Ώμλ§μ κ°μ§ μμ 4μ리 μ μλ λͺ¨λ λͺ κ°μ
λκΉ?
|
100
|
999
|
625
|
500
| 3
|
high_school_mathematics
| 70
|
$$\frac{-\frac{18}{7}}{-\frac{6}{5}}$$μ κ°μ 무μμΈκ°μ?
|
\frac{7}{15}
|
\frac{15}{7}
|
\frac{15}{8}
|
\frac{15}{11}
| 2
|
high_school_mathematics
| 71
|
200μ μμ μ κ³±κ·Όμ μμ μ κ³±κ·Ό 121λ³΄λ€ λͺ νΌμΌνΈ λ ν°κ°μ? λ΅μ μμμ 첫째 μ리μμ λ°μ¬λ¦Όνμ¬ μ μλ‘ νννμμμ€.
|
29
|
14
|
27
|
11
| 1
|
high_school_mathematics
| 72
|
$(2x+3y)^2=4$μ΄κ³ $xy=-5$μΌ λ, $4x^2+9y^2$μ κ°μ?
|
-5
|
13
|
64
|
25
| 3
|
high_school_mathematics
| 73
|
첫 νμ΄ 9μΈ λ±μ°¨μμ΄μμ μΈ κ°μ μ€μλ‘ μ΄λ£¨μ΄μ§ μμμμ΄ νμ±λλ€. λ λ²μ§Έ νμ 2λ₯Ό λνκ³ μΈ λ²μ§Έ νμ 20μ λνλ©΄, μ΄ μΈ μλ€μ λ±λΉμμ΄μ μ΄λ£¬λ€. λ±λΉμμ΄μμ κ°λ₯ν κ°μ₯ μμ μΈ λ²μ§Έ νμ 무μμΌκΉμ?
|
2
|
1
|
9
|
16
| 2
|
high_school_mathematics
| 74
|
μ£Όμ΄μ§ μμ΄μ 첫 λ²μ§Έ νμ 1μ΄λ©°, κ° μ°¨λ‘μ νμ μμ΄μ λͺ¨λ μ΄μ νμ ν©κ³μ
λλ€. 첫 λ²μ§Έ νμ΄ 5000μ μ΄κ³Όνλ κ°μ μ΄λ κ°μΈκ°μ?
|
10240
|
5001
|
5002
|
8192
| 4
|
high_school_mathematics
| 75
|
λ€μ μ€ μ³μ μ€λͺ
μ?
|
f(x)κ° x=cμμ μ°μμ΄λ©΄, f'(c)κ° μ‘΄μ¬νλ€.
|
f'(c) = 0μ΄λ©΄, fλ (c, f(c))μμ κ΅μ μ΅λκ° λλ μ΅μκ°μ κ°μ§λ€.
|
f''(c) = 0μ΄λ©΄, fμ κ·Έλνλ (c, f(c))μμ λ³κ³‘μ μ κ°μ§λ€.
|
x=cμμ fκ° λ―ΈλΆ κ°λ₯νλ©΄, fλ x=cμμ μ°μμ΄λ€.
| 4
|
high_school_mathematics
| 76
|
$a\star b = a^b-ab$μΌ λ, $2\star x = 22$μΈ κ²½μ° $x$λ₯Ό ꡬνμμ€.
|
5
|
22
|
11
|
6
| 1
|
high_school_mathematics
| 77
|
2011λ
2μμ 28μΌμ΄κ³ 3μμ 31μΌμ
λλ€. λ€μ λ¬μΈ 4μμ μμ μμΌμ λ¬΄μ¨ μμΌμ
λκΉ?
|
μμμΌ
|
λͺ©μμΌ
|
κΈμμΌ
|
ν μμΌ
| 3
|
high_school_mathematics
| 78
|
ν λ§μμ λ°μ΄λ¬μ€κ° νΌμ§κ³ μμΌλ©°, λ°μ΄λ¬μ€μ κ°μΌλ μ¬λ μλ 3μΌλ§λ€ 2λ°°μ© μ¦κ°ν©λλ€. λ§μ½ λ§μμ 1000λͺ
μ΄ μμΌλ©° 1μ 1μΌμ λ°μ΄λ¬μ€μ κ°μΌλ μ¬λμ΄ 10λͺ
μ΄λΌλ©΄, ν ν΄λ 365μΌμ΄λ©° 1μμ 31μΌμ΄λΌκ³ κ°μ ν λ, μ 체 λ§μμ΄ λ°μ΄λ¬μ€μ κ°μΌλ μ μλ κ°μ₯ μ΄λ₯Έ λ μ§λ μΈμ μ
λκΉ?
|
1μ 10μΌ
|
1μ 21μΌ
|
1μ 31μΌ
|
2μ 10μΌ
| 2
|
high_school_mathematics
| 79
|
리μ€νΈ $25, 26, 27, \ldots, 99, 100$ μλ μ«μκ° λͺ κ° μμ΅λκΉ?
|
75
|
76
|
22
|
23
| 2
|
high_school_mathematics
| 80
|
MISSISSIPPIμμ κΈμ Mμ ν¬ν¨νλ 2 κΈμ μ΄μμ ν°λ¦°λ둬 (μμΌλ‘ μ½μ΄λ λ€λ‘ μ½μ΄λ κ°μ λ°°μ΄)μ λͺ κ°λ λ§λ€ μ μμ΅λκΉ?
|
89
|
66
|
86
|
2012
| 1
|
high_school_mathematics
| 81
|
25^1059λ₯Ό 23μΌλ‘ λλ λ λλ¨Έμ§λ?
|
11
|
13
|
8
|
5
| 3
|
high_school_mathematics
| 82
|
252μ 96μ μ΅λ곡μ½μλ?
|
6
|
24
|
5
|
12
| 4
|
high_school_mathematics
| 83
|
μ μ₯μ€μ μ‘°λ₯ μ¬λ£ 9κ°κ° μμ΅λλ€. μμμΌμ 17κ°κ° λ λ°°λ¬λ©λλ€. νμμΌμ 22κ°κ° λ°°λ¬λ©λλ€. μμμΌμλ 3κ°κ° λ°°λ¬λ©λλ€. λͺ©μμΌμ 11κ°κ° λ°°λ¬λ©λλ€. λ§μ§λ§μΌλ‘ κΈμμΌμ 18κ°κ° λ°°λ¬λ©λλ€. μΌμ£ΌμΌμ΄ λλ λ, μ΄ μ‘°λ₯ μ¬λ£ κ°μλ μΌλ§μ
λκΉ?
|
9
|
25
|
60
|
80
| 4
|
high_school_mathematics
| 84
|
$\frac{k-3}{2} + 3k+1+\frac{3k+1}{2}$λ₯Ό κ°λ¨νκ² νμΈμ.
|
3k+1
|
5k
|
3k
|
1
| 2
|
high_school_mathematics
| 85
|
μκ³κ° μκ°λ§λ€ ν΄λΉ μκ°λ§νΌ μΈλ¦¬κ³ (μ: μ€ν 3μμλ 3λ² μΈλ¦Ό) μκ° κ°κ²©λ§λ€ 15λΆλ§λ€ ν λ²μ© μΈλ¦¬λ©΄ (μ: μ€ν 3:15, 3:30 λ° 3:45μ μΈλ¦Ό), μ€ν 5:10λΆν° 7:35κΉμ§ μ΄ λͺ λ² μΈλ¦¬λμ?
|
3
|
15
|
18
|
21
| 4
|
high_school_mathematics
| 86
|
ν λ³μ΄ 12 μΈμΉμΈ μ μΌκ°νμ λμ΄λ λλ΅ μΌλ§μ
λκΉ?
|
62
|
72
|
84
|
112
| 1
|
high_school_mathematics
| 87
|
μ΄λ€ ν¨μ $f(x)$μ κ·Έλνκ° μ°μΈ‘μΌλ‘ 2λ¨μ μ΄λλκ³ μμ§μΌλ‘ 2λ°° λλ €μ§λ©΄ (μ¦, λͺ¨λ $y$-μ’νκ° 2λ°°κ° λλ€λ κ²μ μλ―Έν¨) μλ κ·Έλνμ λμΌν λͺ¨μμ΄ λ©λλ€. $f(0)=0.1$μΌ λ, $f(10)$μ 무μμΈκ°μ?
|
0.01
|
1
|
32
|
3.2
| 4
|
high_school_mathematics
| 88
|
$f(x)=\frac{1+x}{1-x}$μ΄κ³ $g(x)=\frac{-2}{x+1}$μΌ λ, ν¨μ $f$λ₯Ό 8λ² μ μ©νκ³ ν¨μ $g$λ₯Ό 8λ² μ μ©νμ¬ λ μ¬μ΄λ₯Ό λ²κ°μκ°λ©° κ³μ°ν λ, \[g(f(g(f(\dotsb g(f(12)) \dotsb ))))\] μ κ°μ ꡬνμμ€.
|
12
|
8
|
4
|
0
| 3
|
high_school_mathematics
| 89
|
μ‘΄μ νμ€ 12μκ° μκ³μμ λΆμΉ¨κ³Ό μμΉ¨μ΄ μ΄λ£¨λ κ°λκ° μ€ν 6μ μ΄ν μ§μ λκ° λ 110λμμΌλ©°, κ·Έ λ°€ 6μ μ΄ν 7μ μ΄μ μ λ€μ λμμμλ μ¬μ ν 110λμμ΅λλ€. κ·Έκ° 5λΆ μ΄μ μ§μ λ λ κ²½μ°, κ·Έκ° μΌλ§ λμ λ λ¬μ΅λκΉ?
|
36
|
40
|
38
|
43
| 2
|
high_school_mathematics
| 90
|
$f(x)=3x+4$, $g(x)=2x-3$μΌ λ, $h(x)=f(g(x))$ μ΄λ©΄ $h(x)$ μ μν¨μλ?
|
\frac{x-5}{3}
|
\frac{x+5}{3}
|
\frac{x+5}{6}
|
\frac{x-5}{6}
| 3
|
high_school_mathematics
| 91
|
$-\dfrac{1}{-3}\cdot\cfrac{1}{~\frac{1}{-3}~}$μ(λ₯Ό) ꡬνμμ€.
|
1
|
-1
|
0
|
2
| 2
|
high_school_mathematics
| 92
|
κ³ μ²΄μ λ°λ©΄μ x^2 = 4yκ³Ό y = 2λ‘ λλ¬μΈμΈ μμμ΄λ©°, y μΆκ³Ό μμ§μΈ κ° νλ©΄λ¨λ©΄μ μ μ¬κ°νμ
λλ€. κ³ μ²΄μ λΆνΌλ?
|
8
|
16
|
20
|
32
| 4
|
high_school_mathematics
| 93
|
μ€μ $a$μ $b$μ λνμ¬ $-3\leq a\leq1$ κ·Έλ¦¬κ³ $-2\leq b\leq 4$μΈ λ²μμμ $a$μ $b$κ° μμλ‘ μ νλμμ λ, $a\cdot b$κ° μμμΌ νλ₯ μ μΌλ§μΈκ°μ? λ΅μ λΆμλ‘ λνλ΄μΈμ.
|
\frac{5}{12}
|
\frac{5}{11}
|
\frac{7}{12}
|
\frac{5}{17}
| 1
|
high_school_mathematics
| 94
|
x = 8μ μ€μ¬μΌλ‘ y = x2/3μ λν Taylor λ€νμμμ (x - 8)2 νμ κ³μλ?
|
-1/144
|
-1/72
|
1/144
|
1/6
| 1
|
high_school_mathematics
| 95
|
μ (5, 4)μ (-2, 3)μ μ§λλ μ μ κΈ°μΈκΈ°λ?
|
0.14
|
0.2
|
0.33
|
5
| 1
|
high_school_mathematics
| 96
|
νΉμ λ μ λΉκ° μ¬ νλ₯ μ΄ 70%μΈ κ²½μ°, κ·Έμ κ°μ λ λ μ λΉκ° μ€μ§ μμ νλ₯ μ λͺ%μΈκ°μ?
|
0%
|
30%
|
50%
|
70%
| 2
|
high_school_mathematics
| 97
|
$\frac{4^{(3^3)}}{(4^3)^3} = 2^N$μ λ§μ‘±νλ $N$μ κ°μ?
|
9
|
27
|
36
|
34
| 3
|
high_school_mathematics
| 98
|
λ€μ μ€ y > 9x β 8κ³Ό y < βx + 8 μμͺ½μ ν΄λΉνλ ν΄κ° μλ κ²μ?
|
(β2, 15)
|
(β1, 5)
|
(0, 0)
|
(1, 5)
| 1
|
high_school_mathematics
| 99
|
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