Math, asked by rutujafuljele40, 10 months ago

tan70 - tan50 - tan20= tan70 tan50 tan20

Answers

Answered by nakulg777

3

Step-by-step explanation:

50 =70-20

taking tan on both sides

tan50 =tan(70-20)

tan50= tan70-tan20/1+tan70tan20

tan50+tan70tan50tan20=tan70-tan20

tan70-tan50-tan20=tan70tan50tan20

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