## anonymous 5 years ago approximate using the trapezoidal rule by dividing the interval 1<x<5 into four sub intervals. int_{1}^{5}6/x dx

1. anonymous

$\int\limits_{1}^{5}6/x$

2. anonymous

this is my approach but it appears wrong according to the answers: $\int\limits_{1}^{5}6/x$ $\approx$ $\int\limits_{1}^{2}6/x +\int\limits_{2}^{3}6/x +\int\limits_{3}^{4}6/x +\int\limits_{4}^{5}6/x$ $\approx$ 2(6+3)+2(3+2)+2(2+3/2)+2(6/5+3/2) $\approx$ 40.4