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A variable in the radicand of a radical expression _______________ represents a positive quantity. Always Sometimes Never

User Ameenhere
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Sometimes

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


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