Two small matlab questions please do both just give me scree

Two small matlab questions (please do both)

just give me screenhot and code of matlab

Q1) use matlab to find definate integral of f(x)=x^2*e^(3x) over interval -1 and 5

q2) use matlab to evaluate the function 1/3*x^3 + e^2x over interval (1,6) and then find its derivative by using three difference technique

Solution

1.

2.

for diffrentiation we can use the code