20-04-2017
Mathematics

contestada

rationalise the denominator 3/square root of 7

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makanafranzmann makanafranzmann

20-04-2017

Multiply by square root of 7 divided by the square root of 7 and this gives you (3 root 7 ) divided by 7.

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BackPacker99 BackPacker99

20-04-2017

To do this, we multiply

[tex]3/ \sqrt{7}* \sqrt{7}/ \sqrt{7} [/tex]

We can do this be square root 7/square root 7 equals one. The result of this is:

[tex]3*\sqrt{7}/7 [/tex]

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