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JEE Advanced Mathematics question

MathematicsTrigonometric Ratio and IdentitiesJEE Advanced

The value of is equal to

Answer: (B)

Solution

Missing argument for \sqrt\sqrt3\operatorname{cosec}20°-20°==Missing argument for \frac\frac{4(\frac{\sqrt3}{2}\cos20°-\frac12\sin20°)}{2

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Question ID VK-108451