Let the set of all a \in R such that the equation \cos 2 x+a \sin x=2 a-7 has a solution be [p, q] and r=\tan 9^{\circ}-\tan 27^{\circ}-\frac{1}{\cot 63^{\circ}}+\tan 81^{\circ}, then pqr is equal to [27-Jan-2024 Shift 1]

Trigonometric Ratios and Identities

Section: Mathematics

Question : 20 of 64

Marks: +1, -0

Let the set of all a∈R such that the equation cos‌2‌x+asin‌x=2a−7 has a solution be [p,q] and r=tan‌9∘−tan‌27∘−‌

cot‌63∘

+tan‌81∘, then pqr is equal to

[27-Jan-2024 Shift 1]

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