Hey can anyone help me with this maths question?

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TheSA04
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TheSA04
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main confusion is regarding the first bracket
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mqb2766
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(Original post by TheSA04)
main confusion is regarding the first bracket
Both are obviously nCr terms, which you must have come across, so just use the expressions in terms of k and simplify.
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Justvisited
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Yes, it seems pretty straightforward to me - how far have you got?
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