Since 1 - cos^2 x = sin^(2)x does that mean 1 - cos^(2)3x = sin^(2)3x?
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Hello again Originally Posted by cjh824 Since 1 - cos^2 x = sin^(2)x does that mean 1 - cos^(2)3x = sin^(2)3x? Exactly ! x is just a name, you can put anything you want in it
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