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Agniveer Navy Trigonometric Functions — practice questions

5 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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$\cos 2\theta$ equals:cos(90°) equals:sin(A) + sin(B) equals (sum-to-product):General solution of cos θ = 0:$ in(90^\circ - \theta)$ equals: