History, asked by amartyakunta16, 7 months ago

sin 10° × sec 80°=
please answer this urgently..

Answers

Answered by varsha200321

2

sin10×cosec(90-80)

sin10×cosec10

=1

Answered by Manisha581997

0

Answer:

sin 10° × sec 80°

sin 10° × 1 / cos 80°

sin 10° × 1 / cos(90-10)

sin 10° × 1 / sin 10°

sin 10° / sin 10°

= 1 Answer

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