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Verify that (1+cos2theta)/(costheta)=2costheta is an identity.
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Verify that (1+cos2theta)/(costheta)=2costheta is an identity.
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Aug 19, 2019
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Verify that (1+cos2theta)/(costheta)=2costheta is an identity.
Mathematics
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Mike Karp
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Neil Bostrom
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Aug 25, 2019
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Neil Bostrom
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