Use Euler's method with \(h= 0.10 \) to approximate \(x( -0.80 )\) and \(y( -0.80 )\) given the following system of IVPs.

\[ x'= t^{2} x^{2} + 4 \, t^{2} y^{2} + 1 \hspace{2em} x( -1 )= 0 \]

\[ y'= 2 \, x y^{2} + 4 \, t y - 3 \hspace{2em} y( -1 )= -1 \]