Question

Tugas mtk wajib kls 10
jawab pake cara, no 1-5

jawaban asal tanpa cara dihapus

Answer 1

Jawabannya dan penjelasannya tertera:

Maaf kalau salah

Answer 2

Matematika

Nomor 1

f(x) = 3x - 1

f(-2) = 3(-2) - 1

= -7

f(-1) = 3(-1) - 1

= -4

f(0) = 3(0) - 1

= -1

f(1) = 3(1) - 1

= 2

f(2) = 3(2) - 1

= 5

range = {-7 , -4 , -1 , 2 , 5}

jawaban C

Nomor 2

= f(x) - g(x)

= x/(x+1) - x/(x-1)

= x(x - 1) - x(x + 1) / (x² - 1)

= (x² - x - x² - x) / (x² - 1)

= -2x / (x² - 1)

jawaban E

Nomor 3

(fog)(x) = (gof) (x)

f(g(x)) = g(f(x))

3g(x) - 4 = 2f(x) + p

3(2x + p) - 4 = 2(3x - 4) + p

6x + 3p - 4 = 6x - 8 + p

3p - p = 6x - 6x - 8 + 4

2p = -4

p = -2

jawaban D

Nomor 4

f(x) = 10 - x²

f(-1) = 10 - (-1)²

= 9

f(0) = 10 - 0²

= 10

f(1) = 10 - 1²

= 9

f(2) = 10 - 2²

= 6

f(3) = 10 - 3²

= 1

f(4) = 10 - 4²

= -6

range = {-6 , 1 , 6 , 9 , 10}

jawaban C

Nomor 5

(fog) (x) = f(g(x))

= 2g(x) - 1

= 2((x + 2) / (x - 1) - 1

= (2x + 4)/(x - 1) - (x-1)/(x-1)

= (x + 5) / (x - 1)

jawaban C