Question 2

Simplify $$\frac{2}{1-\sqrt{2}}$$

Solution

Share

2/(1-√2)

=2(1+√2)/(1-2) (multiply the numerator and denominator by (1+√2)).

=-2(1+√2).

C is correct choice.

Create a FREE account and get:

  • Download RRB Study Material PDF
  • 45+ RRB previous papers with solutions PDF
  • 300+ Online RRB Tests for Free