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MCGROW HILL PUBLICATION-TRIGONOMETRY-Multiple Choice Questions
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- cos 2x + 2cos x is always :-
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- If sin theta+ cosec theta =2, then sin^n theta+"cosec"^n theta is equa...
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- The value of [sqrt3 cot 20^(@) -4 cos 20^(@)] is equal to-
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- The value of sqrt3"cosec"20^@ - sec 20^@ is equal to
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