evaluate each of the following integral:-

Question

I= ∫((x^2+ 1)/(x^4+ 1))dx

Y=∫(sinhxcoshx)dx/√(sinhx^4+coshx^4)

Answer 1

Try checking here:

https://in.answers.yahoo.com/question/index?qid=20101212020426AAEM8Zp

and

https://answers.yahoo.com/question/index?qid=20131119231723AABFnM7

Answer 2

Thanxxx