If x and y are connected parametrically by the equations given in without eliminating the parameter, Find dy/dx.

x = sin t, y = cos 2t


It is given that


x = sin t, y = cos 2t


Then, we have



= cost ………… (1)



= -2sin2t………… (2)


So, equation (1) and (2), we get



, Since sin2t = 2sintcost


= -4sint


Hence, the value of is -4sint


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