Math, asked by srijan17dw, 9 months ago

Prove that sin70/cos20+cosec20/sec70-2cos70.×cosec20=0

Answers

Answered by sarkarharsh708

4

Step-by-step explanation:

sin70/cos20 + cosec20/sec70 - 2cos70×cosec20

= sin70/sin70 + cosec20/cosec20 - 2cos70×sec70

= 1 + 1 - 2 = 0

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