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If A+B+C=180^(@), then the value of (cot...

If `A+B+C=180^(@),` then the value of `(cot beta + cot C) (cot C + cot A) (cot A+ cot B)` will be

A

secA secB secC

B

cosecA cosecB cosecC

C

tanA tanB tanC

D

1

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