For the first parts of the question I had to expand and The next part is to find I can't get anywhere near the answer in the book, having tried dividing/multiplying the two expansions...
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Originally Posted by JeWiSh For the first parts of the question I had to expand and The next part is to find I can't get anywhere near the answer in the book, having tried dividing/multiplying the two expansions... Those expansions are nonsense.
Originally Posted by Prove It Those expansions are nonsense. They are? They're just approximations, up to the term. The book says they're right...
Originally Posted by JeWiSh They are? They're just approximations, up to the term. The book says they're right... You should have said that when you used them.
Originally Posted by mr fantastic You should have said that when you used them. Sorry...can anyone get me started?
Originally Posted by JeWiSh For the first parts of the question I had to expand and The next part is to find I can't get anywhere near the answer in the book, having tried dividing/multiplying the two expansions... You mean find an approximate expression for , right .... ? To what degree?
Originally Posted by mr fantastic You mean find an approximate expression for , right .... ? To what degree? To the term I think, since that's what I was supposed to expand the original expressions to.
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