Відео

^=read as to the power *=read as square root #=read as theta As per question Sec^4x-sec^2x ={(sex^2x)^2 }-sec^2x =(1+tan^x)^2 -(1-tan^2x) =(1+tan^2x)(1+tan^2x-1) =(1+tan^2x). tan^2x =tan^2x+tan^4x... (Proved )

Q5 is false just change to argsh and the solution is the integral of 1/a^3/2 time tanh

Problem 5 solution have some corrections, Updated video link is in the description. please kindly look into it. Sorry for the inconvenience caused by our team.

Q5 1+tan^3(theta)not equal sec^(theta)

viet nam

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