Question

The rationalising factor of
$\frac{1}{ \sqrt{a} + - \sqrt{b} }$
is??
​

Answer 1

Answer:

(√a+√b)/√a+√b)

Step-by-step explanation:

multiply the given question with the negation of what is existing already eg., if you see subtraction you have to multiply the same denominator on both numerator and denominator with a plus sign in between