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Anonymous Anonymous
  • 23-07-2014
  • Mathematics
Answered

simplify the expression

a)square root of 45

b)square root of 54

c)square root of 16/25

Verified Answer :

Lilith
Lilith Lilith
  • 23-07-2014

\(a)\\\\ \sqrt {45}=\sqrt{9\cdot 5}=\sqrt{9}\cdot \sqrt{5}=3\sqrt{5}\\\\b)\\\\ \sqrt{54}=\sqrt{9\cdot 6}=\sqrt{9}\cdot \sqrt{6}=3\sqrt{6}\\\\c)\\\\\sqrt{\frac{16}{25 } }=\frac{\sqrt{16}}{\sqrt{25}}=\frac{4}{5}\)

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