$\begin{array}{1 1}(a)\;-\large\frac{1}{3}\normalsize\;and\;\;0\\(b)\;\;\large\frac{1}{3}\normalsize\;and\;\;3\\(c)\;-\large\frac{1}{3}\normalsize\;and\;\;\large\frac{1}{3}\\(d)\;-3\;and\;\;3\end{array}$
