In MATLAB plz.

A. Compute integrals of f(x) and g(x), using the following methods: 1. Directly computing the integral in MATLAB, using the function integral 2. Using trapezoid numerical method through analytical equation of trapezoid, as stated in the lecture note. 3. Using trapezoid method, through the MATLAB function of trapz 4. Using Simpson's numerical method, through the analytical equation of Simpson's method, as stated in the lecture note. Partition the interval to n sub-intervals and use the same sub-interval for steps 2-4. Sf(x) dx, f(x) = x+x+1 (x2 + 1)2 S9(x) dx, g(x) = V5 4x x? B. Compute the error of steps 1 to 4 with respect to the precise value of the integrals. Which one of the methods is 1, 2 or 4 are more precise for f(x)? which one for g(x)? (type your answer on screen). Note-1: You should compute the precise value manually. Note-2: In the step 1, MATLAB also uses a numerical method to compute the integral