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!!
+9479 \(\frac{3}{1-\sqrt2}\)
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
