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JEE Main 2013Medium

Q.If cos1x+cos1y=π/3\cos^{-1} x + \cos^{-1} y = \pi/3, then the value of sin(cos1x)sin(cos1y)\sin(\cos^{-1} x) \sin(\cos^{-1} y) is

a
1/41/4
b
1/21/2
c
3/4\sqrt{3}/4
d
3/2\sqrt{3}/2

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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