Question

Integration help. *question attached below* will give medal

Answer 1

Can I have some help on this question please? T.R. means Trapezium Rule. And if there's anything about my handwriting you don't understand, please let me know.

Answer 2

As a start : sketch the region and setup an integral for volume

Answer 3

Hmm, give me a second to figure it out

Answer 4

Question, how does the line x=pi/4 look?

Answer 5

pi is a number

Answer 6

x = pi/4 is a vertical line passing through the point (pi/4, 0)

Answer 7

Thank you! I shall attempt to sketch the graph now

Answer 8

0 to pi/4 refers to moving along x axis

Answer 9

where is the curve \(\large y = \sqrt{2+\cos x}\) ?

Answer 10

looks perfect,
delete that earlier diagonal line from origin