Question

x = sint , y = cos 2t, find dy/dx , without eliminating the parameter
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Answer 1

Step-by-step explanation:

differentiate the DX by dt

dX/dt =d(sint)/dt

dX/dt =cos t

differentiate the dy by dt

dy/dt= d(cos2t)/ dt

dy/dt = -2sint

now dX/dy

dX/dy =cos t/ -2sint

dX/dy= -1/2cot

Answer 2

Answer:

-4sint

Step-by-step explanation:

I hope this will help

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