Question

Evaluate:-



$\huge \displaystyle \sf \int \dfrac{ \sqrt{x^{2} + a^{2} } }{x} dx$​

Answer 1

$\small{\int \sqrt{(x^2 + a^2)}/x dx = \sqrt{(a^2 + x^2)} - a tanh^{(-1)}(sqrt(a^2 + x^2)/a) + constant}$

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Answer 2

Answer:

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