Problem+12



.5 [f(-1) + f(-.5) + f(0) + f(.5) + f(1) + f(1.5) + f(2) + f(2.5)] .5 [ 1 + .5 + 0 + .5 + 1 + 1.5 + 2 + 2.5 ] = 4.5 left hand method^

.5 [f(-.5) + f(0) + f(.5) + f(1) + f(1.5) + f(2) + f(2.5) + f(3)] .5 [ .5 + 0 + .5 + 1 + 1.5 + 2 + 2.5 + 3 ] = 5.5 right hand method^

or you can get an //exact// answer by using a formula from geometry (or, in this case, the midpoint approximation!)