Math, asked by moulya3750, 7 months ago

2tan 43 / cot 47 - tan 70 / cot 20 = 1

Answers

Answered by ritvik86

1

Answer:

2 tan (90-47)/cot47-tan(90-70)/cot 20 2cot47/cot47-cot20/cot 20 £tan(90-@)=cot@£ 2x1-1=2-1=1 hence proved

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