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AP® Calculus AB-BC

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Tangent Line from Polar Equation

APCALC-EILMNK

Find the tangent line to the polar curve $r=\sin{\theta}$ at the point when $\theta=\cfrac{\pi}{2}$.

A

$x=0$

B

$y=x+\cfrac{\sqrt{2}}{2}$

C

$y=1$

D

There is no tangent line at this point.