Math, asked by alakhdewp, 10 months ago

If A+B+C=180° and CosA=CosB×CosC,prove that:TanB×TanC=2

Answers

Answered by AdityaJadhavSTDY

1

First please give me the measures of all the angle of the triangle ........?

Answered by shibasis12

0

Answer:

a+b+c=180

Cosa =cos b

tanB*tanC=2

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