+0

0
111
1

3

over

1 - sqrt of 2

Plz work out the steps

Don't do the sqrt of 2 on a calculator to where u get a decimal!!

Guest Apr 10, 2017
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#1
+4728
+3

$$\frac{3}{1-\sqrt2}$$

Multiply the numerator and denominator by the conjugate of the denominator.

$$=\frac{3}{1-\sqrt2}\cdot\frac{1+\sqrt2}{1+\sqrt2} \\~\\ =\frac{3+3\sqrt2}{1+\sqrt2-\sqrt2-2} \\~\\ =\frac{3+3\sqrt2}{-1} \\~\\ =-3-3\sqrt2$$

And that is approximately -7.243

hectictar  Apr 10, 2017

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