Math, asked by sidolrajfirstname, 17 days ago

cos5A/cosec8A-sin5A/sec8A=sin3A

Answers

Answered by CB7th

0

Step-by-step explanation:

since cosec A is sin A and sec A is cos A, we get

cos5asin8a - sin5acos8a

= sin(8a - 5a)

= sin(3a)

hence proved

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