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Rewrite with only sin x and cos x. cos 2x + sin x
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Rewrite with only sin x and cos x. cos 2x + sin x
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Jul 9, 2017
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Rewrite with only sin x and cos x.
cos 2x + sin x
Mathematics
high-school
Yandry Pozo
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Yandry Pozo
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Hello,
as cos 2x=cos²x-sin²x=1-2sin²x
then
cos 2x+sin x=-2sin² x+sin x +1
Wickramaranga
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Jul 11, 2017
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This is the expression written with only sinx and cosx.
Arctomachine
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Jul 16, 2017
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