# Answer on Calculus Question for arindam

Question #6949

integration of x/(sin x + cos x) ?????

Expert's answer

Answer is

where

i: imaginary unit

tanh

log(x): natural logarithm

Li

where

i: imaginary unit

tanh

^{-1}: inverse hyperbolic tangentlog(x): natural logarithm

Li

_{n}(x): polylogarithm functionNeed a fast expert's response?

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