1.

Choose the correct option and justify your choice.(i) (A). sin60°(B). cos60°(C). tan60°(D). sin30°(ii) (A). tan90°(B). 1(C). sin45°(D). 0(iii) sin2A = 2sinA is true when A =(A). 0°(B). 30°(C). 45°(D). 60°(iv) (A). cos60°(B). sin60°(C). tan60°(D). sin30°

Answer»

Choose the correct option and justify your choice.



(i)



(A). sin60°



(B). cos60°



(C). tan60°



(D). sin30°



(ii)



(A). tan90°



(B). 1



(C). sin45°



(D). 0



(iii) sin2A = 2sinA is true when A =



(A). 0°



(B). 30°



(C). 45°



(D). 60°



(iv)



(A). cos60°



(B). sin60°



(C). tan60°



(D). sin30°



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