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Cos Theta
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Cos
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1:17
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Classtheta
prove cos( pi - theta ) = -cos theta
prove cos( pi - theta ) = -cos theta To prove that cos(π - θ) = -cos(θ), we can use the unit circle and some trigonometric identities. 1. **Unit Circle Interpretation:** - The cosine of an angle corresponds to the x-coordinate of a point on the unit circle. - Consider the angle θ in standard position. The point on the unit circle ...
246 views
Feb 2, 2025
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