Find 
, when
If x = cos t and y = sin t, prove that 
at 
as x = cost
Differentiating it with respect to t ,
……(1)
And, y = sint
Differentiating it with respect to t,
……(2)
Dividing equation (2) by (1),
16
Find , when
If x = cos t and y = sin t, prove that at
as x = cost
Differentiating it with respect to t ,
……(1)
And, y = sint
Differentiating it with respect to t,
……(2)
Dividing equation (2) by (1),