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If A,B,C are the angles of triangle ABC,...

If A,B,C are the angles of triangle ABC, then the minimum value of `|{:(-2,cos C , cos B),(cos C , -1, cos A ) , (cos B , cos A , -1):}|` is equal to :

A

0

B

`-1`

C

1

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:
D
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