\newproblem{ \FPsetpar{a}{5}{8} \FPsetpar{b}{2}{4} \begin{problem}[4] Solve the following equations: \begin{tabella}[1]{l}{r} Equation & Solution \cr \hline $x^2+\FPsv{a+b}x+\FPsv{a*b}=0$& $x=\a;\; x=\b$ \cr \hline $x^2-\FPsv{a+b}x+\FPsv{a*b}=0$&$ x=-\a;\; x=-\b$ \cr \hline $x^2+\FPsv{a-b}x-\FPsv{a*b}=0$& $x=-\a;\; x=\b$ \cr \hline $x^2-\FPsv{a-b}x-\FPsv{a*b}=0$& $x=\a;\; x=-\b $\cr \end{tabella} \end{problem} } \newproblem{ \begin{problem}[5] Complete the following table of derivatives: \begin{tabella}[1]{l}{r} Function & Derivative \cr \hline $f(x)=x^2$ & $f'(x)=2x$\cr \hline $f(x)=\sin x$ & $f'(x)=\cos x$\cr \hline $f(x)=\cos x $& $f'(x)=-\sin x$\cr \end{tabella} \end{problem} }