Math, asked by kulu1051, 1 year ago

cos2A=sin(90-2A)how??

Answers

Answered by 9391149443

2

Answer:

Step-by-step explanation:

Cos2a=sin(90-2a)

R.h.s:sin(90-2a) =+cos2a

By applying sin(90-A) from ( all siliver tea cups )qudrant 2 sin(90-A) is cos2a

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