Question

If x=3-2√2 find the value of x*1/3-1/x*1/3

Answer 1

When you plug in the x values in the equation (x*1/3-1/x*1/3), you will get a fraction with rational values
= $\frac{9- 2\sqrt{2} }{6- 2\sqrt{2}}$

Next step- Rationalize the fraction by multiplying the numerator and denominator with the denominator- but will different sign so that you will get a natural number in the denominator

You will get
$\frac{46- 6\sqrt{2} }{28}$

You'll final answer in decimals will be 1.95 (2dp)