100 Things Celtics Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

100 Things Celtics Fans Should Know & Do Before They Die (100 Things...Fans Should Know)

Matematika Jika diketahui f(x) = 2x2 - 3x - 12 dan g(x) = 3X + 8, nilai dari (g ◦ f)(-2) adalah … ​


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Jika diketahui f(x) = 2x2 - 3x - 12 dan g(x) = 3X + 8, nilai dari (g ◦ f)(-2) adalah … ​


plis jawab kak besok dikumpulkan

Penjelasan dengan langkah-langkah:

FUNGSI KOMPOSISI

f(x) = 2x² – 3x – 12

g(x) = 3x + 8

(g o f)(x) = 3(2x² – 3x – 12) + 8

(g o f)(x) = 6x² – 9x – 36 + 8

(g o f)(x) = 6x² – 9x – 28

(g o f)(x) = 3x(2x – 3) – 28

(g o f)(–2) = 3×(–2)(2×(–2) – 3) – 28

(g o f)(–2) = –6(–4 – 3) – 28

(g o f)(–2) = –6(–7) – 28

(g o f)(–2) = 42 – 28

(g o f)(–2) = 14 ✔

f (x) = 2x² - 3x - 12

g (x) = 3x + 8

maka,

(g o f) (-2)

= 3 [2(-2)² - 3(-2) - 12] + 8

= 3 (8 + 6 - 12) + 8

= 3 (2) + 8

= 6 + 8

= 14

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