write the simplest rationalising factor for each of the following
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1)√2
2)√2
3)√7
4)√15
are the simplest rationalising factors of the following respectively
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1). 5√2/√2×√2/√2
=5×2/2
= 10/2
= 5
2) 2√2/√2×√2/√2
=2√2/2
= √2
you can solve rest of the questions by this method....
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