$3.$ Numerical Integration

$-$ Write a function trapezoidal$\_$rule$($f$,$ a$,$ b$,$ n$)$ that computes the numerical integral of a function f over the interval

$[$a$,$ b$]$ using the trapezoidal rule with n subintervals.

$-$ Use this print statement once you have implemented the trapezoidal rule

print$($f$"$n $=\{$n$\},$ Approximate Integral $=\{$approx$\},$ Error $=\{$error$\}")$

where "approx" is the result from your function and "Error" is the difference between the analytical result

and the approximated result.

$-$ Use func as the function to intergrate over.

def func$($x$)$:

return x$**3+$ x$**2+$ x $+5$