☐ ☐ 3. Approximate the following integrals using the trapezoid rule. (Round answer to four decimal places.) 0.04016 ○ 0.02585 0.03683 ○ 0.03811 ☐ L +5 1 - dx; use n = 6 subintervals 1+x4 ☐ 4. Approximate the following integrals using Simpson's rule. (Round answer to three decimal places.) 12.1708 +5 L 4+ x2dx; use n = 6 subintervals 2 12.16624 12.80999 ○ 12.1639 ☐ ☐ 5. Approximate the following integrals using Simpson's rule. (Round answer to three decimal places.) .9 x+dx; use n = : 4 subintervals 1 12776.000 11826.667 6216.000 ○ 11328.000