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JEE Main Mathematics question

MathematicsTrigonometric Ratio and IdentitiesJEE Main

If , then the value of is equal to

Answer: (C)

Solution

Square both sides: . Apply componendo–dividendo: $Missing argument for \frac\frac{(1+\cos A)+(1-\cos A)}{(1+ A)-(1-

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Question ID VK-007899