Math, asked by irenerachel, 10 months ago

(i) cos 60°
(cos2 30° - sin2 30°).

Answers

Answered by aakriti05

1

Step-by-step explanation:

cos 60°=cos2 30°-sin2 30°

cos 1/2=cos2 √3/2-sin2 1/2

cos 1/2= cos2 √3-sin2 1/2

cos = cos^2 √3 - sin^2 1

Mrk me as BRAINLIEST

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