icycold66 icycold66
  • 16-08-2018
  • Mathematics
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Which expression is equivalent to (16x^6y^-12)1/2

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gmany
gmany gmany
  • 16-08-2018

[tex] (16x^6y^{-12})^\frac{1}{2}=(4^2x^6y^{-12})^\frac{1}{2}=(4^2)^\frac{1}{2}(x^6)^\frac{1}{2}(y^{-12})^\frac{1}{2}\\\\=4^{2\cdot\frac{1}{2}}x^{6\cdot\frac{1}{2}}y^{-12\cdot\frac{1}{2}}=4^1x^3y^{-6}=4x^3y^{-6}=\dfrac{4x^3}{y^6}\\\\\text{Used:}\\\\(a\cdot b)^n=a^n\cdot b^n\\\\(a^n)^m=a^{n\cdot m}\\\\a^{-n}=\dfrac{1}{a^n} [/tex]

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