Can someone show me exactly step by step how to rationalise the denominator in this question?
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Originally Posted by MingMing Can someone show me exactly step by step how to rationalise the denominator in this question? You have to doe this question in (at least) 2 steps: I'll leave the 2nd step for you.
Last edited by earboth; March 25th 2011 at 11:28 AM.
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