(-1,0) cos($\pi$) = -1 sin($\pi$) = 0 tan($\pi$) = 0
Work Step by Step
Using the unit circle when t = $\pi$, The (x,y) point is (-1,0) Using the coordinate points: cos($\pi$) = -1 sin($\pi$) = 0 tan($\pi$) = 0
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