QUESTION 3 a) Show on a sketch the region that is represented by sinx dx on [0,2] b) Select three values of n such that n≤10 and use the left endpoint, right endpoint and midpoint approximations to obtain the area of the sketch in ( Note that the values chosen must either be all odd numbers or all even numbers. c) Highlight at least three conclusions that can be drawn from comparing your answers in (b) 1/2 to the exact value of sin x dx