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JEE Advanced Mathematics question

MathematicsTrigonometric Ratio and IdentitiesJEE Advanced

In a , . The range of values of , where , is the interval

Answer: (C)

Solution

Since , , and

x = A C = Missing argument for \frac\frac12\{(A - C) - (A + C)\} = Missing argument for \frac\frac12(A - C) + Missing argument for \frac\frac14.

Now find the possible values of . With and ,

A - C = 2A -

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Question ID VK-110052