Question 1 (20 Marks)
Use any appropriate method to find each of the following integrals:
1.1
[ cosea sin
[4]
1.2 fsin? xdx
(4]
1.3 fin x de
[4]
1.4 i} sin? (2x) cos(3x)dx
[3]
Questions 2 (35 marks)
2.1 Considera function f(x) =x* —6x, x€[0,3].
2.1.1 Use the fundamental theorem of calculus to evaluate the integral of the
function over the given interval.
[3]
2.1.2 Evaluate the Riemann sum for the function taking sample points to be right
end points with 7 subintervals.
[10]
2.2
={"
di
[5]
dx
2.3
Find the area of the region enclosed by f(x) = 41 x° +, 12x+9 on [0,3].
[8]
2.4 Determine the length of the curve x =2cos*@, y=2sin*>@ between the point
corresponding to 6 = Oand O=5:
[9]
Question 3 (45 Marks)
3.1
Consider f(x)= l+x1
3.1.1 Express f(x) as a sum of a power series and find the interval of
convergence.
[7]
3.1.2 Use your answer in 3.1.1 to evaluate p1=+x°
[5]
3.2
Find the Maclaurin series of cosx and prove that it represents cosx forall x. [11]