Question

approximate using the trapezoidal rule by dividing the interval 1 13 years ago

Answer 1

Hi, if you divide the interval into 4 subintervals each sub interval is of length one.
Now the value of the function at 1,2,3,4,5 are 6,3,2,3/2,6/5.
For example for the trapezoid on top of the first interval, the area is (6+3)/2 * 1 = 9/2.
Do the same thing for the other sub intervals and add them all at the end to approximate the integral.

Answer 2

i did that but got the wrong answer

Answer 3

actually i see the mistake thanks i was multiplying by two instead of a half lol silly mistake thanks for pointing it out:)

Answer 4

glad it works for you :). Should you need any help when I am not around you can ask me here:
http://www.ask.watchmath.com

Answer 5

thanks heaps ur champ :)