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Can you break down the steps for this composite function question please?
d(x)= x/(x-1)
e(x)= 1-x
what is e(d(x)) ??
I know the answer is 1/(x-1) I just don't know how! Please help
1 Answer
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- GFLv 66 years ago
e(x)= 1-x ; d(x)= x/(x-1)
e(d(x)) = e(x/(x-1)) = 1 - x/(x-1) = (x-1)/(x-1) - x/(x-1) = { x-1 - x} / (x-1) = -1 / (x - 1) = 1 / (1-x)
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