If A+B+C=180^@ then the value of (cotB+c...

If `A+B+C=180^@` then the value of `(cotB+cotC)(cotC+cotA)(cotA+cotB)` will be

A

`sec A sec B sec C`

B

`cosec A cosec B cosec C`

C

`tan A tan B tan C`

D

1

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The correct Answer is:

B

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