Determine analytically and show graphically the max$-$min composition$\_$of the two fuzzy

relations $\backslash$utilde $\{R_1\}$ and $\backslash$utilde $\{R_2\}$ defined by the following membership functions:

${}_{\text{l}\text{u}\text{r}\text{i}\text{d}\text{e}\{R1\}}=e^{-k(x-y{)}^2},k1$

${}_{\frac{?}{\text{u}\text{r}\text{i}\text{d}\text{e}}\{R2\}}=e^{-k(y-z{)}^2},k1$