Mark the correct choice-Assertion A- If - x sin3 - - y cos3 - sin- cos- and x sin - - y cos - then x2 - y2 - 1-Reason R - For any value of -sin2 - - cos2 - - 1-

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Evaluation of a Determinant

Mark the corr...

Question

Mark the correct choice.
Assertion (A): If = $x {sin}^{3} θ + y {cos}^{3} θ$ = sinθ cosθ and x sin θ = y cos θ, then $x^{2} + y^{2}$ = 1.
Reason (R) : For any value of θ, ${sin}^{2} θ + {cos}^{2} θ$ = 1.

A is false but R is true.

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A is true but R is false.

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Both A and R are true and R is the correct explanation of A.

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Both A and R are true and R is the correct explanation of A.

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