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You can not solve this integrals in terms of elementary function.
This well-known integral is used in electrical engineering.
See:
integrate sin(x)/x - Wolfram|Alpha
Hi. It's a suggestion to treat "special functions" like antiderivatives of integrals that can't be expressed in simple terms, in the same way that you treat so if I have you say "hey, that's easy, it's . So hey, is easy. It's . . .
Also, for that second we did that one here:
http://www.mathhelpforum.com/math-he...x-e-x-2-a.html