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Question

Number of ordered pairs (x,y) satisfying |y|=cosx, y=sin1(sinx),x[2π,3π] is


A

3

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B

5

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C

6

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D

7

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Solution

The correct option is B

5



We observe that graph of y=sin1(sinx) and |y|=cosx intersect exactly at 5 points.


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