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## Homework Statement

so dy/dx = y dot / x dot

and d^2y/dx^2 = d/dx(y dot/x dot)

can someone please show me the steps to get

d^2y/dx^2 = (x dot y dot dot - y dot x dot dot)/ (x dot)^ 2

I've been trying to get to it for the last half an hour and failing

Thanks