Rut gon bieu thuc:
(3√2+√10)×√(38-12√5)
Cho bieu thuc:
P=\(\frac{1}{\sqrt{x}+2}-\frac{5}{x-\sqrt{x}-6}-\frac{\sqrt{x}-2}{3-\sqrt{x}}\)
a. Rut gon bieu thuc P
b.Tim GTLN cua P sau khi rut gon
Rut Gon bieu thuc
\(\sqrt{3-2\sqrt{2}}+\sqrt{5-2\sqrt{6}}\)
rut gon bieu thuc
\(\sqrt{5+\sqrt{13+\sqrt{5+...}}}\)
Rut gon bieu thuc sau
(15√200 - 3√450 + 2√50) : √10
Minh can sieu nhanh ma phai dung, Thanks truoc nha!!
rut gon bieu thuc
A=\(\frac{2}{5}.\sqrt{50x}-\frac{3}{4}.\sqrt{8}\left(x\ge0\right)\)
(x-y+3√x+3√y)/(√x-√y+3) rut gon bieu thuc, khó đấy cần gấp
\(\sqrt{x}+\frac{\sqrt[3]{2-\sqrt{3}}.\sqrt[6]{7+4\sqrt{3}}-x}{\sqrt[4]{9-4\sqrt{5}}.\sqrt{2+\sqrt{5}}+\sqrt{x}}\)
Rut gon bieu thuc
\(\frac{15\sqrt{x}-11}{x+2\sqrt{x}-3}-\frac{3\sqrt{x}-2}{\sqrt{x}-1}-\)\(\frac{2\sqrt{x}+3}{\sqrt{x}+3}\)
Rut gon bieu thuc
tum x de bieu thuc = \(\frac{-1}{7}\)