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Integrate the functions.
Let 1+ cosx = t
⇒ -sinx dx = dt
⇒
= - log|t| + C
= -log|1 + cosx| + C
sin x sin (cos x)
sin (ax + b) cos (ax + b)
tan2 (2x – 3)
sec2 (7 – 4x)
cot x log sin x
equals