find the value of
cos² 24° + cos² 66°
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4
Answer:
Cos²24°+Cos²66°=1
is the answer
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Answered by
1
Answer:
Given:
cos^2 24 + cos^2 66
Proof:
here cos (90-theeta) = sin theeta
cos^2 (90 - 66) + cos^2 66
sin^2 66 + cos^2 66
here sin^2 theeta + cos ^2 theeta
sin^2 66 + cos^2 66
1
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