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If tanA+tanB+tanC=tanAtanBtanC then...

If `tanA+tanB+tanC=tanAtanBtanC` then

A

A,B,C must be angles of a triangle

B

the sum of any two of A,B,C is equal to the thrid

C

A+B+C must be n integral multiple of `pi`

D

none of these

Text Solution

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The correct Answer is:
A
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