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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)/(4) le x le (pi)/(4)` is

A

`0`

B

`2`

C

`1`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
C
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ACCURATE PUBLICATION-DETERMINANTS-Type-I (Multiple choice questions)
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  3. If A=[(3,2),(1,4)] , then A(adj A) equals

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