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Question-74620




Question Number 74620 by aliesam last updated on 27/Nov/19
Answered by mind is power last updated on 27/Nov/19
tchek it sir  ther is somme  problems    ln(((x^2 −1)/(∣cos(x)∣)))  is not defnd in (π/2)+kπ∪{−1,1},∀k∈Z,  i think is too find  PV(of integral) principal value
$$\mathrm{tchek}\:\mathrm{it}\:\mathrm{sir} \\ $$$$\mathrm{ther}\:\mathrm{is}\:\mathrm{somme} \\ $$$$\mathrm{problems}\:\:\:\:\mathrm{ln}\left(\frac{\mathrm{x}^{\mathrm{2}} −\mathrm{1}}{\mid\mathrm{cos}\left(\mathrm{x}\right)\mid}\right) \\ $$$$\mathrm{is}\:\mathrm{not}\:\mathrm{defnd}\:\mathrm{in}\:\frac{\pi}{\mathrm{2}}+\mathrm{k}\pi\cup\left\{−\mathrm{1},\mathrm{1}\right\},\forall\mathrm{k}\in\mathbb{Z}, \\ $$$$\mathrm{i}\:\mathrm{think}\:\mathrm{is}\:\mathrm{too}\:\mathrm{find} \\ $$$$\mathrm{PV}\left(\mathrm{of}\:\mathrm{integral}\right)\:\mathrm{principal}\:\mathrm{value} \\ $$$$ \\ $$$$ \\ $$$$ \\ $$

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