aashyagreenaashya aashyagreenaashya
  • 16-06-2018
  • Mathematics
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A variable in the radicand of a radical expression _______________ represents a positive quantity. Always Sometimes Never

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frika
frika frika
  • 28-06-2018
Sometimes

1. The radical expression [tex] \sqrt[n]{} [/tex] with even n requires a variable with positive quantity. For example, if you have [tex] \sqrt[4]{x^3} [/tex], then always [tex]x^3\ge 0[/tex].


2. If you have radical expression [tex] \sqrt[n]{} [/tex] with odd n, ia variable may be arbitrary. For example, for [tex] \sqrt[7]{x} [/tex] you can consider all real x.
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