The question asks If f(X) = x+2e^x, find the value of g'(1+2e), where g(x) = inverse of f(x) for all x I have no idea where to start. I tried to find the inverse of f(x) but that only led to x=y+2e^y and I'm stuck there. Please help.
Last edited by vnsin; Oct 28th 2009 at 12:51 AM.
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Originally Posted by vnsin The question asks If f(X) = x+2e^x, find the value of g'(1+2e), where g(x) = inverse of f(x) for all x I have no idea where to start. I tried to find the inverse of f(x) but that only led to x=y+2e^y and I'm stuck there. Please help. Let . Therefore: . Now note that . Therefore . Substitute into : .
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