Question

Rationalize the denominator: 1 √2−√3+√4 .

Answer 1

=1/√2-√3+√4
=√2+√3+√4÷[(2)^2-(√3+√4)^2]
=√2+√3+√4÷[4-3-4-2√12]
=√2+√3+√4÷[-3-2√12]
=-√2-√3-√4÷[3+2√12]