diket f(x)=x²+2x-5 dan g(x)=x+3 tentukan (fog)(2)
Matematika
andilesmana2
Pertanyaan
diket f(x)=x²+2x-5 dan g(x)=x+3 tentukan (fog)(2)
1 Jawaban
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1. Jawaban aurigafdl
f(x)=x²+2x-5
g(x)=x+3
(fog)(2) = f(g(2))
= f( 2 + 3 )
= f(5)
= (5)²+2(5)-5
= 25 + 10 -5
= 30
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