Tính:
a/ \(\frac{2}{\sqrt{3}-1}+\frac{3}{\sqrt{3}-2}+\frac{12}{3-\sqrt{3}}\)
b/ \(\frac{1}{\sqrt{3}-\sqrt{2}}-\frac{2}{\sqrt{7}+\sqrt{5}}-\frac{3}{\sqrt{5}-\sqrt{2}}+\frac{4}{\sqrt{7}+\sqrt{3}}\)
c/ \(\frac{\sqrt{14}-\sqrt{17}}{1-\sqrt{2}}\)
d/ \(\frac{3\sqrt{2}-3}{\sqrt{2}-1}\)
e/ \(\frac{5\sqrt{a}-\sqrt{ab}}{\sqrt{b}-5}\)
...
Đọc tiếp
Tính:
a/ \(\frac{2}{\sqrt{3}-1}+\frac{3}{\sqrt{3}-2}+\frac{12}{3-\sqrt{3}}\)
b/ \(\frac{1}{\sqrt{3}-\sqrt{2}}-\frac{2}{\sqrt{7}+\sqrt{5}}-\frac{3}{\sqrt{5}-\sqrt{2}}+\frac{4}{\sqrt{7}+\sqrt{3}}\)
c/ \(\frac{\sqrt{14}-\sqrt{17}}{1-\sqrt{2}}\)
d/ \(\frac{3\sqrt{2}-3}{\sqrt{2}-1}\)
e/ \(\frac{5\sqrt{a}-\sqrt{ab}}{\sqrt{b}-5}\)
