zlah
zlah
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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