for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2
step-by-step explanation:
g(x)=x-2
f(x)=|x|
(g o f)(a)=?
(g o f)(x)=g(f(x))
(g o f)(x)=g(|x|)
(g o f)(x)=|x|-2
(g o f)(a)=|a|-2
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