Question

solve this QUESTION
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Answer 1

Hii

you are welcome in my ans

let x= tan@

let i = sqrt1 + x^2

i = sec@

i = Ssec@

i = logsec@

i = log sec(tan^-1x)

i = log sec(sec^-1(x/sqrt1+ x^2)

i = logx/sqrt 1+ x^2

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Hope my ans helps you✌️✊

Answer 2

Answer:

just use the formula given in special integrals.

check the attachment for the complete answer..

hope this helps you..