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

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

`2cos A cos B cos C`

D

None of these

Text Solution

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The correct Answer is:
A
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MCGROW HILL PUBLICATION-DETERMINANTS-SOLVED EXAMPLES (LEVEL 1 SINGLE CORRECT ANSWER TYPE QUESTIONS)
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