Question

Tính:

a. \(\left(\sqrt{32}-\sqrt{50}+\sqrt{8}\right):\sqrt{2}\)

b. \(\left(5\sqrt{48}-3\sqrt{27}+2\sqrt{12}\right):\sqrt{3}\)

c. \(\sqrt{3-\sqrt{5}}-\sqrt{3+\sqrt{5}}\)

d. \(\sqrt{4+\sqrt{7}}-\sqrt{4-\sqrt{7}}-\sqrt{2}\)

e. (\(\sqrt{6}-\sqrt{2}\) ) : \(\sqrt{2+\sqrt{3}}\)

f. \(\left(4+\sqrt{15}\right)\left(\sqrt{10}-\sqrt{6}\right)\sqrt{4-\sqrt{15}}\)

Answer 1

\(a,\left(\sqrt{32}-\sqrt{50}+\sqrt{8}\right):2\)

\(=\left(4\sqrt{2}-5\sqrt{2}+2\sqrt{2}\right):2\)

\(=\sqrt{2}:2\)