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

the question :

integrate the following :

integration of d(y/x) = integration of(c cos x/x^2) dx , where c is a constant

2. Relevant equations

integration of d(y/x) = integration of(c cos x/x^2) dx

y/x = c integration of (c cos x/x^2) dx (*)

= c(x^-2 sin x -integration(sin x (-2x^-3))dx

(*) i let u = x^-2

du = -2x^-3

dv= cos x dx

v = sin x

and by integration by parts, i got (*)

but the integration on the RHS seems to complex which contradicts with the principle of integration by parts, which makes the integration simpler... i think i made some mistake some where... can anyone highlight it to me... plz...

3. The attempt at a solution

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# Homework Help: Problem with integration by parts

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