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JEE Main 2022 Mathematics question

MathematicsTrigonometric Ratio and IdentitiesJEE Main 2022

The value of 2 sin(12°) − sin(72°) is-

Answer: (4)

Solution

2 sin 12° − sin 72° = sin 12° + (sin 12° − sin 72°) = sin 12° − 2 cos 42° sin 30° = sin 12° − cos 42° = sin

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Question ID VK-024908