Evaluate displaystyle int cot^{-1}left( frac {sin 2x}{1-cos 2x} right) dx
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Ex 12.1, 17 - Evaluate: lim x->0 cos2x - 1 / cosx - 1 - Ex 12.1
SOLUTION sin 2x + cos2x = 0 sin 2x = - cos 2x sin 2x - = -1 cos 2x tan 2x = -1 +1 a < x < 21 271 <
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Evaluate displaystyle int tan^{-1} { sqrt { frac { 1- cos 2x}{1+ cos 2x} } }dx
