G(x)=(10-x)cos((pi)x)

find an expression for the derivative G'(x)

i got that but then it says

hence show that an antiderivative of f(x) is

F(x)= ((sin((pi)x)) \ (pi)) - G(x)

and f(x) =pi(10-x)sn(pi)x

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- Jul 29th 2010, 12:52 AMdustinbehemothhelp with intergration by recogbition
G(x)=(10-x)cos((pi)x)

find an expression for the derivative G'(x)

i got that but then it says

hence show that an antiderivative of f(x) is

F(x)= ((sin((pi)x)) \ (pi)) - G(x)

and f(x) =pi(10-x)sn(pi)x - Jul 29th 2010, 01:06 AMmr fantastic
- Jul 29th 2010, 01:09 AMdustinbehemoth
the derivative of g(x) was

(pi)(10-x)sin(pi)x - cos(pi)x - Jul 29th 2010, 05:19 AMmr fantastic
- Jul 30th 2010, 12:09 AMdustinbehemoth
found a heaps easier(may just be better explained) way but thanks anyway