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Sagot :
Step-by-step explanation:
√9x2√18y2. √9=3. √x2=x. √18=√9×2=3√2. √y2=y. Therefore √9x2√18y2=3x3√2y = x√2y.
Answer:
A. [tex] \frac{x \sqrt{2} }{2y} [/tex]
Step-by-step explanation:
[tex] \sqrt{9 {x}^{2} } \div \sqrt{18 {y}^{2} } \\ \\ = \frac{ \sqrt{9{x}^{2} } }{ \sqrt{18 {y}^{2} } } \\ \\ = \sqrt{ \frac{9 {x}^{2} }{18 {y}^{2} } } \\ \\ \\ = \sqrt{ \frac{ {x}^{2} }{2 {y}^{2} } } \\ \\ = \frac{x}{ \sqrt{2} y} \\ \\ = \frac{x \sqrt{2} }{2y} [/tex]
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