da6niccassedbabyFac da6niccassedbabyFac 22-11-2016 Mathematics contestada if x=t^2-1 and y=t^4-2t^3, then when t=1 what's d^2y/dx^2? if x=t^2-1 and y=t^4-2t^3, then when t=1 what's d^2y/dx^2?