When a number has a positive and a negative root, the positive root is called?
1 answer:
Answer:
"principal root"
Step-by-step explanation:
The positive (even or odd) root of a positive real number is called its <em>principal root</em>.
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When an odd root is taken of a negative real number, the negative real root is the principal root. That is -2 is the principal cube root of -8.
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