Find a function f such that f(1) = 0 and f'(x) = 2^(x) / x
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Originally Posted by TsAmE Find a function f such that f(1) = 0 and f'(x) = 2^(x) / x .
Originally Posted by mr fantastic . I love it when it's simple ...
Arent you suppose to find the anti-derivative of f'(x) = 2^(x) / x?
Originally Posted by TsAmE Arent you suppose to find the anti-derivative of f'(x) = 2^(x) / x? In that case, good luck ....
Originally Posted by mr fantastic In that case, good luck .... I am not sure of the method you used, thats why I asked, as I thought that the only of finding it was by using an anti-derivative
Mr F did not use any method .. He get the answer by using the FTC .. The problem here is that is unelementary integral .. What ever you do, you can not evaluate it in terms of elementary functions ..
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