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Verify the Identity cos⁡(3π2−θ)=−sin⁡θ\cos \left( \frac { 3 \pi } { 2 } - \theta \right) = - \sin \theta

Question 66

Essay

Verify the identity.
- cos⁡(3π2−θ)=−sin⁡θ\cos \left( \frac { 3 \pi } { 2 } - \theta \right) = - \sin \theta

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