Math, asked by ayuvalrani16, 4 months ago

sin 3A = cos(2a-20) then find out the value of a

Answers

Answered by aafia62

1

Answer:

sin3A=cos(2a-20)

sin(90-3a)=cos(2a-20)

cos(90-3a)=cos(2a-20)

90-3a=2a-20

90+20=2a+3a

110=5a

a=110/5

a=22

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