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# cylindrical polars Q2 of TeeEm's questions

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1. In question 2 of the cylindrical polars questions in the thread created by TeeEm, why does the squared in the (x+y+z)^2 disappear in the solutions at the start?

Thank you
In question 2 of the cylindrical polars questions in the thread created by TeeEm, why does the squared in the (x+y+z)^2 disappear in the solutions at the start?

Thank you
You'll need to link the question or put up a picture of it.
3. (Original post by Zacken)
You'll need to link the question or put up a picture of it.
its cylindrical polars 2 http://www.thestudentroom.co.uk/show....php?t=3349661
its cylindrical polars 2 http://www.thestudentroom.co.uk/show....php?t=3349661
He wrote down one problem and solved another. It's a mistake.

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