Consider the curve defined by for

MATHEMATICS · Single correct · AP · Calculus BC · Parametric, Polar, and Vector-Valued Functions · Parametric, Polar, and Vector-Valued Functions

Problem

Consider the curve defined by

x=\sin t,\; y=\cos t

for

0< t<2\pi

. How many points in this interval of

t

are points of inflection of the curve? (a)

0

(b)

1

(c)

4

(d)

2