Question

Sa se determine daca este rational sau irational numarul:$\ \frac{\sqrt{3} + \sqrt{2}}{ \sqrt{3}- \sqrt{2} } -2 \sqrt{6}$

Answer 1

rationalizam

(√3+√2)² /3-2  -2√6=  3+2√6 +2 -2√6=5 ∈R