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If x is any real number then why is the square root of x2 not equal to x?
Kindralashelle
say x=-2, the x^2=4, but the square root of 4 is 2 because we always take the positive value, known as the principal root. Using this square root of x^2=|x|. So if x is greater than or equal 0, than square root of x^2 is x, but if x is less than zero we must take its abolute value.
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Is the square root of 0 a real number?
The square root of 0 is 0, which is a real number.
Is the square root of negative 3 an irrational or a real number?
Neither. All irrational numbers are real numbers.Using the real number system you can't take the square root of a negative number, but if you're dealing with imaginary numbers then the square root of negative 3 is the square root of 3i
What is the square root of -12?
The square root of 12 is: ± 3.464102
What is the difference between a square of a number and the square root of a number?
The square root of a number is the inverse of the square. For example, three squared equals nine, so the square root of nine is equal to three.
Is the square root of seven a real number?
Well, first let's define a "real number." A real number is any number that's not imaginary. It can be rational or irrational. The square root of 7 is 2.64575131... and it goes on forever. This means it cannot be written as a simple fraction. We can give an estimate of the square root of 7 in a fraction form, but this is not the exact result. So, the square root of 7 is a irrational number.Since a real number can be irrational or rational, yes, the square root of 7 is a real number.
Is 23 a squared number?
It is not the square of a whole number; but it is the square of a real number. If you calculate the square root of 23, you will get a real number. That real number times itself will equal 23. But the square root will not be a simple whole number. It will have an endless decimal fraction.
Is the square of negative 54 rational'?
No, nor is it a real number. The square root of minus 54 is equal to the square root of plus 45, times i.
What is the real number root of -25?
There is no real number [square] root of a negative number. There is a real cube root and a real fiftth root etc, but root, by itself, implies square root.
Is the square root of 7 a real number?
The square root of seven is a real number, but it is not a whole number.
Is the square root of 0 a real number?
The square root of 0 is 0, which is a real number.
Is the square root of 24 real complex or imaginary?
The square root of any positive real number (as in this case) is a real number. (Such square roots are usually irrational.)The square root of a negative real number, such as the square root of -15, is an imaginary, and therefore also a complex, number.
What is one of 2 equal factors of a number or expression?
A Square Root is one of the two equal factors of a number.
How do you square a square root?
The square of any square root is equal to the number itself. For example, the square of the square root of 2 squared is equal to 2. The square root of 10 squared is equal to 10.Similarly, the square of the square root of 2 is equal to 2.
Can a number with a square root be a real number?
Of course, not only can it be a real number but it is a real number. When you take the square root times itself, the result is a number that is real.
Is the square root of 3 a real number?
Yes, the square root of 3 is a real number. (It is not imaginary. The square root of a negative number is imaginary.) The square root of 3 is not a rational number. It cannot be written as a fraction.
Is the square root of 81 a real number?
Yes. It's 9. The square root of every positive real number is a real number.
Why does the square root of -25 have no real solution?
Because the square root of -25 would be that number that, squared, would equal -25. No number, positive or negative, can result in a negative square. Since -25 is a negative number, no number, positive or negative, can be squared to equal -25.
