Edexcel A2 C4 Mathematics June 2015 - Official Thread

Remember that m is a constant so it's like integrating (7x)^2 i.e. 49x^2

Have you already written m in terms of h and r?

Can someone guide me what to do.
What limits do I use when I integrate y=1/2t^3+3 . dx/dt. dt?

How do I use the info that a line has the equation x = 1?

Can someone guide me what to do.
What limits do I use when I integrate y=1/2t^3+3 . dx/dt. dt?

How do I use the info that a line has the equation x = 1?

I need help or guidance on how to answer B please.

For Part A I got: A(-3, 4) and B(3,4)

For Part B, I got 132.pi and the answer in the book says 36.pi. Can someone tell me if whether I'm wrong or is the
answer in the book wrong?

I know this is a c3 question but would it be true to say:
Range of function = domain of inverse
Domain of function = range of inverse

??


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I know this is a c3 question but would it be true to say:
Range of function = domain of inverse
Domain of function = range of inverse

??


Posted from TSR Mobile

however it looks better if i wrote:

range of inverse is equal to domain of function
domain of inverse is equal to range of function.

its basically the same as what you said but often in most cases you will have the range/ domain of the funtion and be asked to get the inverse then the domain/range of inverse.

What exactly is a Cartesian equation? I get incredibly confused with this, is it just removing t and combining both of them together? Sometimes I have no clue which one to start with too or how to approach them.


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How long did the integration chapter take people to do?

Have you finished integration? We've covered everything except integration...

so how long would it take to completely learn everything about integration
in days or weeks?
thanksss

A week of learning, at least 8hours & then a good 2 weeks of practice before i was 100% on it


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wow I'm acc bricking it by practice do you mean textbook questions or?

People how are you revising/did you revise for S1? Will doing textbook and past papers be enough?

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