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Remidi Matematika XI

Authored by Mirza Rizqiansyah

Mathematics

11th Grade

Used 2+ times

Remidi Matematika XI
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui titik A(5, 1, 3), B(2, -1, -1), dan C(4, 2, -4). Besar sudut ABC = … °

180

90

60

30

0

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui vector a = 4i - 2j + 2k dan vector b = 2i - 6j + 4k. Proyeksi vector orthogonal vector a pada vector b adalah …

i - j + k

i - 3j + 2k

i - 4j + 4k

2i - j + k

6i - 8j + 6k

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui segitiga ABC dengan titik A(-2, 3, 1), B(1, -1, 0), dan C(-1, 1, 0). Proyeksi vektor AB terhadap AC adalah …

2i - 4j + 2k

2i - 4j - 2k

2i + 4j - 2k

i - 2j - k

i + 2j - k

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Akar-akar persamaan kuadrat 2x2 + mx + 16 = 0 adalah dan . Jika = 2 dan , positif maka nilai m = …

-12

-6

6

8

12

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Persamaan kuadrat x2 - 3x - 2 = 0 akar-akarnya p dan q. Persamaan kuadrat baru yang akar - akarnya (3p + 1) dan (3q + 1) adalah …

x2 - 11x - 8 = 0

x2 - 11x - 26 = 0

x2 - 9x - 8 = 0

x2 + 9x - 8 = 0

x2 - 9x - 26 = 0

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui f(x) = 2x + 5 dan g(x) = (x-1)/(x+4) ,x≠-4, maka (f o g)(x) = …

(7x+2)/(x+4),x≠-4

(2x+3)/(x+4),x≠-4

(2x+2)/(x+4),x≠-4

(7x+18)/(x+4),x≠-4

(7x+22)/(x+4),x≠-4

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui fungsi f(x) = (x+1)/(x-3) , x≠ 3, dan g(x) = x2 + x + 1. Nilai komposisi fungsi (g o f)(2) = …

2

3

4

7

8

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