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Solve it ....... ........................................................................... ............................ ............................................. ..............................?

Rahim khan , 8 Years ago
Grade 12th pass
anser 3 Answers
Chandan
take \tan^{-1}(x)=t
therefore 1/(1+x2)dx=dt
dx=(1+x2)dt
now x=tant
1+x2=sec2t
=∫etsec2t dt
now can be done by parts
if even want that please reply me I will answer soon
thankyou
 
Last Activity: 8 Years ago
amj
No antiderivative could be found within the given time limit, or all supported integration methods were tried unsuccessfully. Note that many functions don't have an elementary an
Last Activity: 8 Years ago
Rohit Sharma
Its easy,Put tan-1x = t so,
 
1/1+x2=dt/dx
so,dx = (1+x2)dt = sec2t dt as x = tant
you will get,
Integral of et.sec2t whih you can solve by parts
 
Last Activity: 8 Years ago
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