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# C3 Question Watch

1. I was going to scan this question in, but my scanner has literally died on me . But if anyone has the Edexcel C3/C4 book can you look at page 177 and question 5a).

I don't understand what they are asking for. Thanks for any help. xx
2. u do:

8cosx + 5cosx + 8sinx - 5sinx = 0.5 * 26 (half the perimeter)

13cosx + 3sinx = 13
3. (Original post by ShoCk187)
u do:

8cosx + 5cosx + 8sinx - 5sinx = 0.5 * 26 (half the perimeter)

13cosx + 3sinx = 13
Why do you do that? What is the question asking for?

How would you do q15 on page 87. It's a similar question.

Thanks
4. Here's the question! Took it on my phone.
Attached Images

5. Thats a tough un. Not my faves

The thing is that I can spot how 30, 27cos and 18 sin are divided by 3, I just cant see how they get to it.
6. Lets hope something like this doesn't come up today!
7. Its something to do with SOHCAHTOA for definite
8. Someone!

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