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Earn +20 ptsQ: What is the principal square root of 4 over 25?
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What is square of 25?
The square of 25 is 25 x 25 = 625. The principal square root of 25 is 5.
What is the principal root of -25?
The principal root of a number is the positive real square root of the number - if it exists. Since -25 is negative, it does not have a real square root. Its square roots are the imaginary numbers +/-5i where i is the [imaginary] square root of -1. i is neither positive nor negative and so neither +5i nor -5i is a principal root.
What is the definition of principal square root?
A number will have both a positive and negative square root 5 x 5 = 25 and -5 x -5 = 25.
What is that square root of fraction 20 over 25?
The square root of fraction 20 over 25: = √20 ...√25 = √4(5) ......5 = 2√5 .....5 or 2 square root of 5 over 5
What is the sum of the square root of 15 plus square root of 25?
sqrt(15) + sqrt(25) = 5 + sqrt(15) = 8.873 (using principal roots only).
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