Description
Find d2y/dx2.
x = 5 sin t, y = 6 cos t, 0 < t < 2π
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Explanation & Answer
dy/dt = -6sin t
dx/dt = 5cos t
dy/dx = -6/5 tan t
d2y/dx2 = -6/5 sec2 t * 1/(5 cos t) = -6/25 sec 3 t
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