Find the value of dy dx at t = 0 for the parametric equations x = 4 sin (t), y = cos (2t).

Question

Find the value of  for the parametric equations x = 4 sin (t), y = cos (2t)

A	1
B	0
C	-1
D	undefined

Answer 1

dy/dt=2 sin 2t cos 2t = 4 sin t cos t cos 2t

dx/dt = 4 cos t

dy/dx=sin t cos 2t