9231 P13 - Jun 2012 - Q3 - 8 marks
6489
The curve \(C\) has equation
\(x y+(x+y)^{3}=1\)
Show that \(\frac{\mathrm{d} y}{\mathrm{~d} x}=-\frac{3}{4}\) at the point \(A(1,0)\) on \(C\).
Find the value of \(\frac{\mathrm{d}^{2} y}{\mathrm{~d} x^{2}}\) at \(A\).
Solutions locked. Please sign in with access to view them.