Question
fog (x) =
Answer: Option B
:
B
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:
B
Option (b)
fog (x) = f{g(x)} = f {(x-3)/2} = 2 {(x-3)/2} + 3 = x
gof (x) = g{f(x)} = g (2x + 3) = (2x + 3 – 3)/2= x
therefore fog (x) = gof (x)
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