Find`y_2` in each of the following cases:
`x=a(t+1/t)`,`y=a(t-1/t)`

Find y_2 in each of the following cases: x=t,y=t^2

Find y_2 in each of the following cases: x=e^t,y=sint at t=pi/2

Find y_2 in each of the following cases: y=t^2+t^3 , x=t-t^4

Find the derivatives of the following : x = (1-t^2)/(1+t^2), y = (2t)/(1+t^2)

Find the derivatives of the following : x=(1-t^(2))/(1+t^(2)), y=(2t)/(1+t^(2))

x = t + (1)/(t), y = t - 1/t

Find p(0), p(1) and p(2) for each of the following polynomials : (i) p(y)=y^(2)-y+1 (ii) p(t)=2+t+2t^(2)-t^(3) (iii) p(x)=x^(3) (iv) p(x)=(x-1)(x+1)

Find p(0),p(1) and p(2) for each of the following polynomials: (i) p(y)=y^(2)-y+1 (ii) p(t)=2+t+2t^(2)-t^(3) (iv) p(x)=(x-1)(x+1)

Find dy/dx if, x= (t+(1/t))^a ,y= a^(t+(1/t))

Find (d^(2)y)/(dx^(2)) in the following x=(2at^(2))/(1+t),y=(3at)/(1+t)