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Earn +20 ptsQ: Is the square root of negative 9 imaginary?
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What is the square root of negative 81?
The square roots of -81 are ±9i where i is the imaginary square root of -1.
What is the square root of negative 27 divided by square root of 3?
9
Is the square root of 9 a rational number?
No - a square root of a negative number is an imaginary number. for example, sqrt(-9) is equal to 3i.
What are the Order of Operations when simplifying a negative square root if using the quadratic formula to solve a quadratic formula?
The usual rules for "order of operation" apply. Don't forget that the square root of a negative number is an imaginary number. As an example, the square root of -9 is 3i (that is, the square root of +9, times the "imaginary unit").
What is the number i?
i is the symbol for an imaginary number, a complex number with the property i2=-1. The square root of a negative number is the square root times i. For example, the square root of -9 = 3i.
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