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if 2cos2θ=✓3 then find θ

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if 2cos2θ=✓3 then find θ

Posted by Sofia Sharma 4 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Mohit Kumar 4 years, 7 months ago

2cos2A=√3 Cos2A=√3/2 Cos2A=cos30°.....1 On comparing both side by cos in equation 1 we get 2A=30° A=30/2 A=15°

Rishita Bharadwaj 4 years, 7 months ago

=> Cos2∅=√3/2 => Cos2∅= cos30° => 2∅=30° => ∅= 15°

Abdul Majid 4 years, 7 months ago

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