Question

cos^2x + cos^2(120°-x)+cos^2(120°+x)=3/2
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Answer 1

Step-by-step explanation:

cos^2x + cos^2(120°-x)+cos^2(120°+x)=3/2

cos^2x /2 + cos ^2 (60-x) + cos ^2 (60+x)

cos3x/4 = 3/2

cos 3x = 3/2

hope it helps you

Answer 2

Druv is a god how did u awnser that