Find , when

If x = a sin 2t (1 + cos 2t) and y = b cos 2t (1 – cos 2t), show that at

considering the given functions,

x = asin 2t(1 + cos 2t) and y = b cos 2t(1-cos2t)

rewriting the above equations,

x = a sin 2tsin 4t

differentiating bove function with respect to t, we have,

……(1)

y = b cos 2t - b

differentiating above function with respect to t, we have,

……(2)

| from equation 1 and 2

At t