its just one question, the one with the error

The error function, erf(2), is used in solving the heat equation. It is given by: 2 erf(2) Se*dx Write a program which will calculate the value of the erf(2), adapted from your trapezium integration program above. You can test you program using the information that erf(n) = 1. Clearly explain your two integrations in a Python notebook. Numerical Integration Using the trapezium rule, we can calculate the integral of a function, f(x), between the limits of x=a and x=b to be approximately: n-1 I'vents{ Dr= = [r) +16 -f(b) +2 f(a+ih) f(x)dx i=1 y ) Write a program to calculate the integral of sin (x)