$8$ Using fundamental trigonometry, it can be shown that the relation between the angles and the lengths of the bars is given by: $c=\sqrt[\phantom{2}]{(d-a^{**}cos(\text{a}\text{l}\text{p}\text{h}\text{a})-b^{**}cos(){)}^2+(a^{**}sin()+b^{**}sin(){)}^2}$

Create a Matlab function that takes as input the values of $a,b$ and $d,$ the value of a and an integer value $N.$ The function will return a row vector $c$ that contains the value of $c,$ according to Equation $(2)$ for $N$ evenly spaced values of $$ between $0$ and $(N$ values including $0$ and $).$

The function must also produce a plot of $c$ as a function of $.$

The Matlab header must be:

function $c=$cvalue$(a,b,d,,N)$

The name of the Matlab file must be: cvalue.m