If x and y are connected parametrically by the equations given in without eliminating the parameter, Find dy/dx.
x = a (θ – sin θ), y = a (1 + cos θ)
It is given that
x = a (θ – sin θ), y = a (1 + cos θ)
Then, we have
= a(1-cosθ) …………………… (1)
= a[0 + (-sinθ)]
= -asinƟ …………………… (2)
From equation (1) and (2), we get
Hence, the value of 
is 
6