evaluate the following trigonometric equation.
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√(cot^2-cos^2) = cot cos.
squaring both the sides
(cot^2-cos^2) = cot^2 Cos^2
(cot-cos) (cot+cos) = cot^2Cos^2
((cos/sin)-cos) ((cos/sin)+cos) = Cot^2 cos ^ 2
((cos-cos. Sin)/ Sin)(cos+cos. Sin)/sin=cot^2 Cos^2
(cos ^2-(Cos. Sin)^2)/Sin^2=Cos^4/Sinn ^2
(cos^2(1-Sin^2))/Sin^2=tan^2.cos^2
tan^2 Cos^2 = tan^2 Cos^2
LHS=RHS
Thus,
proved.
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