SOLUTION: please help me solve this equation: simplify this expression by using a double-angle formula
{{ cos^2 theta/3 - sin^2 theta/3}}
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{{ cos^2 theta/3 - sin^2 theta/3}}
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Question 1114730: please help me solve this equation: simplify this expression by using a double-angle formula
{{ cos^2 theta/3 - sin^2 theta/3}} Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! please help me solve this equation: simplify this expression by using a double-angle formula
{{ cos^2 theta/3 - sin^2 theta/3}} = cos(2[t/3]) = cos(2t/3)
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Cheers,
Stan H.
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