b1 rút gọn pta, \(\frac{1}{11xy}\)\(\sqrt{\frac{121x^2}{y^6}}\) vs x <0, y>0b,\(3y^2\)\(\sqrt{\frac{x^6}{9y^2}}\) vs y>0c,\(\frac{2}{x^2-y^2}\)\(\sqrt{\frac{9\left(x^2+2xy+y^2\right)}{4}}\) vs x khác +-yd,\(\frac{1}{2a-1}\)\(\sqrt{25a^4-100a^5+100a^6}\) vs a...
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b1 rút gọn pt
a, \(\frac{1}{11xy}\)\(\sqrt{\frac{121x^2}{y^6}}\) vs x <0, y>0
b,\(3y^2\)\(\sqrt{\frac{x^6}{9y^2}}\) vs y>0
c,\(\frac{2}{x^2-y^2}\)\(\sqrt{\frac{9\left(x^2+2xy+y^2\right)}{4}}\) vs x khác +-y
d,\(\frac{1}{2a-1}\)\(\sqrt{25a^4-100a^5+100a^6}\) vs a khác \(\frac{1}{2}\)
