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The number of distinct real roots of ...

The number of distinct real roots of `|(sinx,cosx,cosx),(cosx, sinx,cosx),(cosx,cosx,sinx)|=0` in the interval `(-pi)/4lexlepi/4` is :

A

0

B

2

C

1

D

3

Text Solution

Verified by Experts

The correct Answer is:
C
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