Question
Solution
(Cos37°/sin 53°) -cos 47°. cosec 43°. [Sin 53° =cos 37°.] [Cosec43° = 1/sin43° and sin43° =cos 47°] Put the value – (sin 53°/sin 53°) -sin43°. 1/sin 43°. =1-1 =0.
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