C3 Question

    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

    u do:

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

    13cosx + 3sinx = 13

    (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.


    Here's the question! Took it on my phone.
    Click image for larger version. 

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    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.

    Lets hope something like this doesn't come up today!

    Its something to do with SOHCAHTOA for definite



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: June 12, 2006

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