Use Euler's method with \(h= 0.10 \) to approximate \(x( -1.8 )\) and \(y( -1.8 )\) given the following system of IVPs.

\[ x'= t^{2} x - 3 \, t^{2} y + 3 \hspace{2em} x( -2 )= 1 \]

\[ y'= -x y^{2} + 2 \, t x - 2 \hspace{2em} y( -2 )= -1 \]