if 2cos2θ=✓3 then find θ

1.	if 2cos2θ=✓3 then find θ
Answer» 2cos2A=√3Cos2A=√3/2Cos2A=cos30°.....1On comparing both side by cos in equation 1 we get2A=30°A=30/2A=15° => Cos2∅=√3/2=> Cos2∅= cos30°=> 2∅=30°=> ∅= 15° 30

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