Hi, I'm trying to derivate this function : . I'm applying this principle : if then . So there I go : Now I derivate : But the book says that's not right and the answer should be : Does anyone see when I went wrong ? Thanks a lot ...
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Originally Posted by Bacterius Hi, I'm trying to derivate this function : . I'm applying this principle : if then . So there I go : Now I derivate : <<<<<<< here! You forgot to apply the chain rule But the book says that's not right and the answer should be : Does anyone see when I went wrong ? Thanks a lot ...
Thanks a lot !
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