diketahui fungsi f(x)=3x-1 dan g (x) = 2xpangkat2+3 nilai dari komposisi fungsi (gof)(1) adalah

Langsung aja y

(gof)(x) = g{f(x)}

= 2f(x)² + 3
= 2(3x-1)² + 3
= 2(9x² - 6x + 1) + 3
= 18x² - 12x + 2 + 3
= 18x² - 12x + 5

(gof)(1) = 18(1)² - 12(1) + 5
(gof)(1) = 18 - 12 + 5
(gof)(1) = 11

Semoga berguna +_+

Bab Fungsi
Matematika SMA Kelas XI

(gof) (1) = ...

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

g (x) = 2x² + 3
g (2) = 2 . 2² + 3 = 11