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If A,B and C are angles of a triangle, t...

If A,B and C are angles of a triangle, then the determinant `|{:(-1,cosC,cosB),(cosC,-1,cosA),(cosB,cosA,-1):}|` is equal to`"........." `

A

0

B

-1

C

1

D

None of these

Text Solution

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The correct Answer is:
A
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