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Identify a rationallising factor for eac...

Identify a rationallising factor for each one of the following surds and verify the same in each case:
(i) `sqrt18` (ii) `5sqrt12` (iii) `root3(49)` (iv) `1/sqrt8`

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Knowledge Check

  • Which one of the following are irrational numbers ? (i) sqrt(2+sqrt3) , (ii) sqrt(4+sqrt25) , (iii) root3(5+sqrt7) , (iv) sqrt(8-root3(8))

    A
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    B
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    C
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    D
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