Lab $8$:

Equation: $,2x^2+cosh(x+1)+(x^3+e^{cosh(x+1)})-6$

Find the exact solution of the integral of this equation for the interval $-2\mathrm{.}5,0\mathrm{.}25.$

Plot the function using two methods.

Find the integral using two functions that take the equation as an anonymous function.

Divide the interval into at least six segments, then use a function that finds the integral value at each segment

Using the figure below, find the function displayed and calculate the integral using two functions that take unequal segments and compare them. $($Hint: Use lab $6$ to find the function$).$

Find how long each integration function takes.

Compare all your results using the percentage error $($write it as a note in Matlab$).$