1. Tinh left(3-sqrt{2}right).sqrt{7+4sqrt{3}}left(sqrt{3}+sqrt{5}right).sqrt{7-2sqrt{10}}left(2+sqrt{5}right).sqrt{9-4sqrt{5}}left(sqrt{6}+sqrt{10}right)sqrt{4-sqrt{15}}sqrt{2}.left(sqrt{8}-sqrt{32}+3sqrt{18}right)sqrt{2}.left(sqrt{2}-sqrt{3-sqrt{5}}right)sqrt{3}-sqrt{2}.sqrt{left(sqrt{3}+sqrt{2}right)^2}left(sqrt{2}-sqrt{3+sqrt{5}}right).sqrt{2}+2sqrt{5}2. Giai ptsqrt{4x^2-4x+1}5sqrt{4x-12}+frac{1}{3}.sqrt{9x-27}4+sqrt{x-3}sqrt{4x+8}-sqrt{9x+18}-2sqrt{x+2}21left(3-2sqrt{x}right).left(2+3sqrt{...
Đọc tiếp
1. Tinh
\(\left(3-\sqrt{2}\right).\sqrt{7+4\sqrt{3}}\)
\(\left(\sqrt{3}+\sqrt{5}\right).\sqrt{7-2\sqrt{10}}\)
\(\left(2+\sqrt{5}\right).\sqrt{9-4\sqrt{5}}\)
\(\left(\sqrt{6}+\sqrt{10}\right)\sqrt{4-\sqrt{15}}\)
\(\sqrt{2}.\left(\sqrt{8}-\sqrt{32}+3\sqrt{18}\right)\)
\(\sqrt{2}.\left(\sqrt{2}-\sqrt{3-\sqrt{5}}\right)\)
\(\sqrt{3}-\sqrt{2}.\sqrt{\left(\sqrt{3}+\sqrt{2}\right)^2}\)
\(\left(\sqrt{2}-\sqrt{3+\sqrt{5}}\right).\sqrt{2}+2\sqrt{5}\)
2. Giai pt
\(\sqrt{4x^2-4x+1}=5\)
\(\sqrt{4x-12}+\frac{1}{3}.\sqrt{9x-27}=4+\sqrt{x-3}\)
\(\sqrt{4x+8}-\sqrt{9x+18}-2\sqrt{x+2}=21\)
\(\left(3-2\sqrt{x}\right).\left(2+3\sqrt{x}\right)=16-6x\)
\(\sqrt{x^2-4}-\sqrt{x-2}=0\)
