b$)$ For flight simulator data the determination of certain changes in operating conditions of

the aircraft is made on the basis of hard breakpoints in the Mach region. Let us define

a fuzzy set to represent the condition of "near" a Mach number of $0\mathrm{.}74.$ Further, define

a second fuzzy set to represent the condition of $"$in the region of$"$ a Mach number of

$0\mathrm{.}74.$ In typical simulation data, a Mach number of $0\mathrm{.}74$ is a hard breakpoint. For the

following two fuzzy sets:

$A=$ near Mach $0\mathrm{.}74=\{\frac{0}{0\mathrm{.}730},\frac{0\mathrm{.}7}{0\mathrm{.}735},\frac{1}{0\mathrm{.}740},\frac{0\mathrm{.}6}{0\mathrm{.}745},\frac{0}{0\mathrm{.}750}\}$

$B=in$ the region $of$ Mach $0\mathrm{.}74=\{\frac{0\mathrm{.}6}{0\mathrm{.}730},\frac{0\mathrm{.}8}{0\mathrm{.}735},\frac{1}{0\mathrm{.}740},\frac{0\mathrm{.}8}{0\mathrm{.}745},\frac{0\mathrm{.}6}{0\mathrm{.}750}\}$

Find

i$.,AB$

ii$.,AB$

iii. $\frac{?}{\text{b}\text{a}\text{r}}(A)$

iv$.\frac{?}{\text{b}\text{a}\text{r}}(AB)$

v$.A\frac{}{b}ar(B)$

vi$.\frac{?}{\text{b}\text{a}\text{r}}(AB)$