Solve in Matlab. QUESTION $1$:

Rewrite the following nested if$-$else statement as a switch statement that accomplishes exactly the same thing. Assume that num is an integer variable that has been initialized, and that there are functions f$1,$ f$2,$ f$3,$ and f$4.$ Do not use any if or if$-$else statements in the actions in the switch statement, only calls to the four functions.Test your switch statement with num: a random integer from $-5$ to $5,$ and creating anonymous functions for f$1-$f$4$ : f$1=$sin$^(2)($:$\}$ num$),$ f$2=$e$^("$num $")$cos$($num$),$f$3=$ num $^(3)+2**$ num, f$4=$arctan$($ num$).$