Math, asked by ishasolanki4, 11 months ago

tan50º = tan40° + 2 tan 10°

Answers

Answered by sandy1816

8

Step-by-step explanation:

tan50=tan(40+10)

tan50=tan40+tan10/1-tan40tan10

tan50-tan50tan40tan10=tan40+tan10

tan50-tan(90-40)tan40tan10=tan40 +tan10

tan50-cot40tan40tan10=tan40+tan10

tan50-tan10=tan40+tan10

tan50=tan40+2tan10

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