Approximate $\int _ { 0 } ^ { 4 }$ $\frac { 1 } { x ^ { 2 } + 1 }$

Short Answer

Approximate $\int _ { 0 } ^ { 4 }$ $\frac { 1 } { x ^ { 2 } + 1 }$ dx; n = 2, by (a) the midpoint rule, (b) the trapezoidal rule, and (c) Simpson's rule.
Enter your answers in that order as just unlabeled real numbers rounded to two decimal places, separated by commas.