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# c4 watch

1. Please can you have a look at question no 6 and then the last part of it where it says : Hence verify that the curve has a stationary point at (1, 1).. Would you get the marks for simply shoving in the values of x and y into the dy/dx that we have got and concluding that it does come to 0? Or do they require something else to be done(I did look at the mark scheme , but I don't really understand the layout)? Also , for Question no 8 part ii) same verification style question . Are we simply shoving in the value of x into the diff equation and concluding that yes , it does come to 0? Any tips would be helpful, thanks in advance!
2. (Original post by laurawoods)
Please can you have a look at question no 6 and then the last part of it where it says : Hence verify that the curve has a stationary point at (1, 1).. Would you get the marks for simply shoving in the values of x and y into the dy/dx that we have got and concluding that it does come to 0? Or do they require something else to be done(I did look at the mark scheme , but I don't really understand the layout)? Also , for Question no 8 part ii) same verification style question . Are we simply shoving in the value of x into the diff equation and concluding that yes , it does come to 0? Any tips would be helpful, thanks in advance!
You might want to link the question?...
3. (Original post by iCiaran)
You might want to link the question?...
http://www.mei.org.uk/files/papers/2011_Jan_c3.pdf
4. (Original post by iCiaran)
You might want to link the question?...
Hello, just a quick question to ask you!
When we are given two parametric equations and then told to find out the solid of revolution , how do we do this?
5. (Original post by laurawoods)
Hello, just a quick question to ask you!
When we are given two parametric equations and then told to find out the solid of revolution , how do we do this?
Same way we always do

6. (Original post by TenOfThem)
Same way we always do

So I take it that the solid of revolution is the same as the volume of revolution. I know how to do volume of revolution when graph is rotated about the axes but how would I go about evaluating it about any line?

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