QUESTION 6 :-If angle A and angle B are acute angles such that cos A = cos B, then show that angle A = angle B.:
QUESTION 6 :- If angle A and angle B are acute angles such that cos A = cos B, then show that angle A = angle B.
QUESTION 7:-If cot θ =7/8, evaluate : (i) (1+sinθ)(1-sinθ) , (ii) cot2θ (1+COSθ)(1-COSθ):
QUESTION 7:- If cot θ =7/8, evaluate : (i) (1+sinθ)(1-sinθ) , (ii) cot2θ (1+COSθ)(1-COSθ)
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