Question

Limite tg^2 / x^2 ,quando x tende a 0.

Answer 1

Ola Edan 

limx->0 tg^2(x)/x^2 = 

limx->0 sen^2(x)/(cos^2(x)/x^2) = 

limx->0 sec^2(x) * limx->0 sen^2(x)/x^2 

limx->0 sec^2(x) = 1
limx->0 sen^2(x)/x^2 = 1

limx->0 tg^2(x)/x^2 = 1 

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