Mathematics
Senior High
なぜこうなるのかがわからないです。
教えて頂きたいです。
(2) (gof(x) = g(f(x)) = g(3x+1)
=33x+1
(fog)(x) = f(g(x)) = f(3*)
=3(3x)+1
=3x+1+1
(2) f(x)=3x+1, g(x)=3*
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