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How do I prove sin^2(Pi/12)+cos^2(Pi/12)=1

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Reputation: 14
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How do I prove sin^2(Pi/12)+cos^2(Pi/12)=1

without using a calculator or Pythagorean identity?

Delivery Time: 2 hours.
Question Category: Calculus.
Henry Peter
Reputation: 104
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Deliver in: 2 hours

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