Math, asked by mrunalbagal218, 6 months ago

1) Prove that 2tan 70º = tan80º – tan 10°

Answers

Answered by Anonymous

1

Answer:

Step-by-step explanation:

tan 80 = (tan 10 + tan 70) / 1-tan10tan70 tan80 - tan10tan70tan80 = tan10 + tan70 tan80 - tan70 = tan10 + tan70 tan80 = tan10 + 2tan70 hence proved

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