Approximate $\int _ { 0 } ^ { 4 } \sqrt { x } d x$

Short Answer

Approximate $\int _ { 0 } ^ { 4 } \sqrt { x } d x$ ; n = 2, by (a) the trapezoidal rule, (b) the midpoint rule, and (c) then find the exact value of the integral.
Enter just a, b, c where a, b are real numbers rounded to two decimal places, and c is a reduced fraction of form $\frac { a } { b }$ all unlabeled and answering the questions in order, separated by commas.