Thực hiên các phép tính:
a) 2sqrt{75}-4sqrt{12}-3sqrt{50}-sqrt{72}
b) sqrt{ab}+2sqrt{dfrac{b}{a}}-sqrt{dfrac{b}{a}}+sqrt{dfrac{1}{ab}}left(a0,b0right)
c) 5sqrt{a}-3sqrt{25a^3}+2sqrt{36ab^2}-2sqrt{9a}left(a0,b0right)
d) dfrac{2sqrt{6}-2sqrt{3}}{sqrt{2}-1}-dfrac{3+sqrt{3}}{sqrt{3}}+sqrt{27}
e) dfrac{1}{1+sqrt{2}}+dfrac{1}{sqrt{2}+sqrt{3}}+...+dfrac{1}{sqrt{99}+sqrt{100}}
f) dfrac{1}{2}sqrt{48}-2sqrt{75}-sqrt{54}+5sqrt{1dfrac{1}{3}}
g) 0,1sqrt{200}+2sqrt{0,08}+0,4sqrt{50}
Đọc tiếp
Thực hiên các phép tính:
a) \(2\sqrt{75}-4\sqrt{12}-3\sqrt{50}-\sqrt{72}\)
b) \(\sqrt{ab}+2\sqrt{\dfrac{b}{a}}-\sqrt{\dfrac{b}{a}}+\sqrt{\dfrac{1}{ab}}\left(a>0,b>0\right)\)
c) \(5\sqrt{a}-3\sqrt{25a^3}+2\sqrt{36ab^2}-2\sqrt{9a}\left(a>0,b>0\right)\)
d) \(\dfrac{2\sqrt{6}-2\sqrt{3}}{\sqrt{2}-1}-\dfrac{3+\sqrt{3}}{\sqrt{3}}+\sqrt{27}\)
e) \(\dfrac{1}{1+\sqrt{2}}+\dfrac{1}{\sqrt{2}+\sqrt{3}}+...+\dfrac{1}{\sqrt{99}+\sqrt{100}}\)
f) \(\dfrac{1}{2}\sqrt{48}-2\sqrt{75}-\sqrt{54}+5\sqrt{1\dfrac{1}{3}}\)
g) \(0,1\sqrt{200}+2\sqrt{0,08}+0,4\sqrt{50}\)
