Math, asked by Sanjnanagar5476, 10 months ago

If cos 2A=sin(A-18°) where 2A is an acute angle, find the value of A

Answers

Answered by ishita10285

3

Answer:

36.

Step-by-step explanation:

cos 2A=sin(A-18)

sin (90-2A)=sin (A-18)

So ,90-2A=A-18

90+18=A+2A

108=3A

108/3=A

So .A=36

HOPE THIS WILL HELP YOU...

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