In the interval [- pi/ 4,pi/4], the num...

In the interval `[- pi/ 4,pi/4]`, the number of real solutions of the equations `abs( [sinx ,cosx , cosx],[cosx , sinx , cosx] , [cosx , cosx , sinx])`

A

0

B

2

C

1

D

3

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The correct Answer is:

C

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