Question

( √2 - √3 )² = a. 5 - 2√6 b. 5 - √6 c. 1 - 2√6 d. 1 - √2 e. 1

Answer 1

$(\sqrt{2} - \sqrt{3})^2= (\sqrt{2})^2-2 \sqrt{2} \sqrt{3} +(- \sqrt{3} )^2=2-2 \sqrt{2*3} +3=5-2 \sqrt{6}$

Answer: A