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algebra precalculus - Using unit circle to explain $\cos(0) = 1

By A Mystery Man Writer

We have been taught $\cos(0) = 1$ and $\sin(90) = 1$. But, how do I visualize these angles on the unit circle?

$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

Solved Use the unit circle (and algebra) to solve each

$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

6 Unit Circle

$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

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$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

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$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

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$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

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$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

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$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

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$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

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$algebra precalculus - Using unit circle to explain $\cos(0) = 1$

Trigonometric Functions of Any Angle - Trigonometry