Question

For this question, does it mean that I can use the Fundamental Theory of Calculus? Or is this question looking for a different kind of solution?

Answer 1

Look at the integrand :
\[y = 1+\sqrt{9-x^2}\]

does that equation look familiar to you ?

Answer 2

Does it have anything to do with a circle?

Answer 3

Yes

Answer 4

I've sort of forgotten it... but it does remind me of some stuff :D what am I supposed to do with it then?

Answer 5

You know how to graph \[y = \sqrt{9-x^2}\]?

Answer 6

Not exactly :S

Answer 7

\[y = \sqrt{r^2-x^2}\] this is the top of a circle right c(0,0) so your radius is \[y=\sqrt{3^2-x^2}\] with centre (0,)

Answer 8

radius = 3