integrate the given functions with respect to x:
[tex] (1) \\ \int \cos(2x).dx[/tex]
[tex](2) \\ \int \cos(nx) .dx[/tex]
answer fast with step wise explanation please.
[tex] (1) \\ \int \cos(2x).dx[/tex]
[tex](2) \\ \int \cos(nx) .dx[/tex]
answer fast with step wise explanation please.
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= int. 2 sin x cos x dx
Since, sin 2x = 2 sin x cos x
So,
int. 2 sin x cos x = - 2x sin x cos x + c
where c is the integral constant.