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The co-ordinates of points of intersecti...

The co-ordinates of points of intersection of the curves `y = cosx and y = sin3x, x in [-pi/2,pi/2]` are

A

`(pi/4, 1/sqrt(2))`

B

`(pi/8, cos p (pi)/8)`

C

`(-(3pi)/8, cos (3pi)/8)`

D

`((3pi)/8, cos (3pi)/8)`

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The correct Answer is:
A, B, C
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