[member910132]

Please have a look at Q8B here
QP: http://store.aqa.org.uk/qual/gce/pdf...W-QP-JAN10.PDF
MS: http://store.aqa.org.uk/qual/gceasa/...W-MS-JAN10.PDF

And I just have two questions which follow in the attachment in the following post

[member910132]

Here


This was posted from The Student Room's iPhone/iPad App

[HouseStark]

The 2) the first sketch youve made is the area that would be calculated.

For 1) you want to find the area of the triangle OPQ, by knowing the pole length of P and Q and the length of PQ.

Good luck on Thursday! Are you sitting C4 as well?

[BabyMaths]

Work out the area of triangle OPQ.

Subtract form that area 2 x integral from pi/6 to pi/2 of whatever it is you have to integrate.

[member910132]

(Original post by HouseStark)
The 2) the first sketch youve made is the area that would be calculated.

For 1) you want to find the area of the triangle OPQ, by knowing the pole length of P and Q and the length of PQ.

Good luck on Thursday! Are you sitting C4 as well?

(Original post by BabyMaths)
Work out the area of triangle OPQ.

Subtract form that area 2 x integral from pi/6 to pi/2 of whatever it is you have to integrate.

Thnx, I know how to do it now but I am asking a general question, can anyone answer q1 on my attachment ? How would I find that area ?

Nah no c4, just fp3.

[BabyMaths]

(Original post by member910132)
How would I find that area ?

That's just triangle OPA + the integral. You know AP=1. You know r=2. Angle OPA is pi/2 - pi/6= pi/3.

Area of triangle = 1/2 x 1 x 2 x sin(pi/3).

I'm afraid that's without referring back to the diagram so I could have some details wrong.