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Y = e ^ x + 1 / e ^ X-1 derivative Y = (e ^ x + 1) / (e ^ x-1) so y '= [(e ^ x-1) * (e ^ x + 1)' - (e ^ x-1) '* (e ^ x + 1)] / (e ^ x-1) ^ 2 [which formula got this step? I can't understand it] = [(e ^ x-1) * e ^ x-e ^ x * (e ^ x + 1)] / (e ^ x-1) ^ 2 = (- 2E ^ x) / (e ^ x-1) ^ 2
Y = (e ^ x + 1) / (e ^ x-1) so y '= [(e ^ x-1) * (e ^ x + 1)' - (e ^ x-1) '* (e ^ x + 1)] / (e ^ x-1) ^ 2
This step is the derivative formula of fraction
It's in the textbook
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