Mohon bantu jawabannya yaa!!!
a. ( g o f )(x) = g[ f(x) ]
= g( x - 5 )
= 2( x - 5 ) + 2
= 2x - 10 + 2
= 2x - 8
( f o g )(x) = f[ g(x) ]
= f( 2x + 2 )
= ( 2x + 2 ) - 5
= 2x - 3
b. f(x) = y
x - 5 = y
x = y + 5
f⁻¹(x) = x + 5
g(x) = y
2x + 2 = y
2x = y - 2
[tex]x = \frac{y - 2}{2} \\ g {}^{ - 1} (x) = \frac{x - 2}{2} [/tex]
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