a 5 points Use the trapezoidal rule with n 4 to find an approximation to the integral int 0 4 e 2 x d x You do not need to simplify your answer You will not receive credit for evaluating the integral b 5 points Using the error formula for the trapezoidal rule estimate how far your answer to a is from the actual value of the integral For full credit you should give and justify your estimate for M in the formula