(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find constants c1 and c2 such that F(x) = c1xsinx+c2cosx is an antiderivative of f(x) = 4xcos(x)+3sin(x)

2. Relevant equations

d/dx cosx = -sinx

d/dx sinx = cosx

3. The attempt at a solution

Don't know how to setup or handle a problem such as this. Prolly much simplier than I'm making it out to be, but heres my attempt:

(-4(x^2)sinx)/(2) + 3cosx

-2(x^2)sinx + 3cosx

Any advice would help. I know my method is wrong.

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# Homework Help: Find constants and antiderivative problem

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