Kuis:
f(x) = 2x², g(x) = 3x, (fog)(-1) = ...![]()
f(x) = 2x², g(x) = 3x, (fog)(-1) = ...
(fog)(-1) = 18
Penjelasan dengan langkah-langkah:
(fog)(x) = f(g(x))
(fog)(x) = 2(3x)²
(fog)(x) = 2((3x)(3x))
(fog)(x) = 2(9x²)
(fog)(x) = 18x²
(fog)(-1) = 18(-1)²
(fog)(-1) = 18
[tex]f(x) = {2x}^{2} \\ g(x) = 3x \\ (fog)(x ) \\ = f(g(x)) \\ = f(3x) \\ = 2(3x) {}^{2} \\ = 2( 9{x}^{2} ) \\ = 18 {x}^{2} \\ \\ (fog)( - 1) = 18( - 1) {}^{2} = 18[/tex]
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