1.

Let f(x)=12a0+∑ni−1aicos(ix)+∑nj−1bj sin (jx),then∫π−πf(x)coskxdx then is equal to

Answer»

Let f(x)=12a0+ni1aicos(ix)+nj1bj sin (jx),thenππf(x)coskxdx then is equal to



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