Question

if x=2/t² y=t³-1,d²y/dx²=​

Answer 1

x=t 2 ⇒ dtdx =2ty=t 3

⇒ dtdy =3t 2

⇒ dxdy= 2t3t 2 = 23t

∴ dx 2d 2 y = 23× dxdt = 23

*2t1 = 4t3