The slope of the normal to the curve \( x=a(\theta-\sin \theta) \), \( y=a(1-\cos \theta) \) at ... VIDEO
The slope of the normal to the curve \( x=a(\theta-\sin \theta) \), \( y=a(1-\cos \theta) \) at point \( \theta=\pi / 2 \) is
(a) 0
(b) 1
(c) -1
(d) \( \frac{1}{\sqrt{2}} \)
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