Chương I - Căn bậc hai. Căn bậc ba
Các câu hỏi tương tự
\(D=\left(2+\frac{5-\sqrt{5}}{\sqrt{5}-1}\right).\left(2-\frac{5+\sqrt{5}}{\sqrt{5}+1}\right)\)\(G=\frac{2}{1+\sqrt{2}}+\frac{1}{3+2\sqrt{2}}\)
giúp mik vs
Giải giúp mik vs ạ xin cảm ơn
\(\frac{15}{\sqrt{6}+1}+\frac{4}{\sqrt{6}-2}+\frac{12}{\sqrt{6}-3}-\sqrt{6}\)
so sánh
\(\sqrt{2}+\sqrt{3}\) và 2
\(\sqrt{8}+\sqrt{5}\) và \(\sqrt{7}-\sqrt{6}\)
THỰC HIỆN PHÉP TÍNH:
22) frac{1}{sqrt{5}+sqrt{2}}+frac{1}{sqrt{5}-sqrt{2}}
23) frac{2+sqrt{3}}{sqrt{2}+sqrt{2+sqrt{3}}}+frac{2-sqrt{3}}{sqrt{2}-sqrt{2-sqrt{3}}}
24) frac{sqrt{18}}{sqrt{2}}-frac{sqrt{12}}{sqrt{3}}
25) sqrt{left(sqrt{5}+1right)^2}+sqrt{left(sqrt{5}-1right)^2}
27) sqrt{3-2sqrt{2}}
28) frac{1}{sqrt{8}+sqrt{7}}+sqrt{175}-2sqrt{2}
30) left(2sqrt{1frac{9}{16}}-sqrt{5frac{1}{16}}right):sqrt{16}
34) frac{left(5sqrt{3}+sqrt{50}right)left(5-sqrt{24}right)}{sqrt{75}-5sqrt{2}}
35) l...
Đọc tiếp
THỰC HIỆN PHÉP TÍNH:
22) \(\frac{1}{\sqrt{5}+\sqrt{2}}+\frac{1}{\sqrt{5}-\sqrt{2}}\)
23) \(\frac{2+\sqrt{3}}{\sqrt{2}+\sqrt{2+\sqrt{3}}}+\frac{2-\sqrt{3}}{\sqrt{2}-\sqrt{2-\sqrt{3}}}\)
24) \(\frac{\sqrt{18}}{\sqrt{2}}-\frac{\sqrt{12}}{\sqrt{3}}\)
25) \(\sqrt{\left(\sqrt{5}+1\right)^2}+\sqrt{\left(\sqrt{5}-1\right)^2}\)
27) \(\sqrt{3-2\sqrt{2}}\)
28) \(\frac{1}{\sqrt{8}+\sqrt{7}}+\sqrt{175}-2\sqrt{2}\)
30) \(\left(2\sqrt{1\frac{9}{16}}-\sqrt{5\frac{1}{16}}\right):\sqrt{16}\)
34) \(\frac{\left(5\sqrt{3}+\sqrt{50}\right)\left(5-\sqrt{24}\right)}{\sqrt{75}-5\sqrt{2}}\)
35) \(\left(2\sqrt{6}-4\sqrt{3}+5\sqrt{2}-\frac{1}{4}\sqrt{8}\right).3\sqrt{6}\)
36) \(\frac{2\sqrt{8}-\sqrt{12}}{\sqrt{18}-\sqrt{48}}-\frac{\sqrt{5}+\sqrt{27}}{\sqrt{30}+\sqrt{162}}\)
39) \(\sqrt{\frac{2-\sqrt{3}}{2+\sqrt{3}}+\sqrt{\frac{2+\sqrt{3}}{2-\sqrt{3}}}}\)
45) \(\frac{\sqrt{6-2\sqrt{5}}}{2-\sqrt{20}}\)
Tính:
a) \(\frac{\sqrt{3+\sqrt{2}}+\sqrt{3-\sqrt{2}}}{\sqrt{3+\sqrt{2}}-\sqrt{3}-\sqrt{2}}\)
b)\(\frac{\sqrt{45+27\sqrt{2}}+\sqrt{45-27\sqrt{2}}}{\sqrt{5+3\sqrt{2}}-\sqrt{5-3\sqrt{2}}}\)
19 tháng 6 2023 lúc 22:38
SO SÁNH :
\(\sqrt{2}+\sqrt{11}\) và \(\sqrt{3}+5\)
2.
a,\(\sqrt{12}-\sqrt{27}+\sqrt{3}\)
b,\(\sqrt{252}-\sqrt{700}+\sqrt{1008}-\sqrt{448};\sqrt{3}.\left(\sqrt{12}+\sqrt{27}-\sqrt{3}\right)\)
c,\(\frac{\sqrt{6}+\sqrt{10}}{\sqrt{21}+\sqrt{35}};\frac{\sqrt{405}+3\sqrt{27}}{3\sqrt{3}+\sqrt{45}}\)
d,\(\frac{\sqrt{2}+\sqrt{3}+\sqrt{4}-\sqrt{6}-\sqrt{9}-\sqrt{12}}{\sqrt{2}+\sqrt{3}+\sqrt{4}}\)
\(\frac{12}{3+\sqrt{3}}-\frac{6}{\sqrt{3}}+\frac{\sqrt{27}-3\sqrt{2}}{\sqrt{3}-\sqrt{2}}\)
Thực hiện phép tính
a) \(\frac{3}{\sqrt{5}-\sqrt{2}}\)-\(\frac{2}{2-\sqrt{2}}\)+\(\frac{1}{\sqrt{3}+\sqrt{2}}\)
b) \(\sqrt{48}-4\sqrt{27}-2\sqrt{75}+\sqrt{108}\)
c) (\(\sqrt{325}-\sqrt{117}+2\sqrt{208}\)) :\(\sqrt{13}\)
m.n giúp mink vs ạ cần gấp lắm m.n ạ