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Zero is the only number that has only one square root.
The square root of zero is zero.
All other numbers have two square roots.
The square roots of 4 are 2 and -2. Two is referred to as the "principal" square root.
When you get to the grade that discusses imaginary/complex numbers, you'll learn that negative numbers also have square roots. The square roots of -4 are 2i and -2i. 2i is the principal square root.
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What is a number that has a square root of 17?
289 is the only one.
What is a conjugate number of 2 plus square root of 5?
[ 2 minus square root of 5 ] is the only one.
What is the square root of a positive?
The square root of a positive number results in a positive number. For example, the square root of 25 is 5. * * * * * Not true! There are two real square roots for every positive number: one positive and one negative. -5 is as much a square root of 25 as +5 is. However, the positive root is the principal root and so is often presented as the only root.
What the two square roots for 9801?
A number can have only one square root; for 9801, it's 99.
What is the square root of a negative number plus the square root of a negative number?
Nothing. You cannot have a square root of a negative number. The square root of negative one is called i, but i is an imaginary number. It does not exist and does not follow the properties of real numbers. (For example, if a and b are positive, then the square root of a times the square root of b is the square root of ab. But the square root of -7 is not the square root of 7 times i.)
Is one half a square number?
a number can only be square if it has a square root.
What is a number that has a square root of 17?
289 is the only one.
What is a conjugate number of 2 plus square root of 5?
[ 2 minus square root of 5 ] is the only one.
What is the square root of a positive?
The square root of a positive number results in a positive number. For example, the square root of 25 is 5. * * * * * Not true! There are two real square roots for every positive number: one positive and one negative. -5 is as much a square root of 25 as +5 is. However, the positive root is the principal root and so is often presented as the only root.
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.
What the two square roots for 9801?
A number can have only one square root; for 9801, it's 99.
How does doubling a number affect its square root?
When you double a number, the square root of the new one is sqrt(2) = 1.4142 times the square root of the original one.
What is the square root of a negative number plus the square root of a negative number?
Nothing. You cannot have a square root of a negative number. The square root of negative one is called i, but i is an imaginary number. It does not exist and does not follow the properties of real numbers. (For example, if a and b are positive, then the square root of a times the square root of b is the square root of ab. But the square root of -7 is not the square root of 7 times i.)
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.
Is the root of an even number equal to an even number?
If you mean square root when you say 'root'then... Yes, only the same number can be a square root and the factors of an even number must contain at least one even number So, if one of the roots is even then the other is the same number and is therefore even.
Does a number have more than two square roots?
No. Since the square root of a number is whatever number times itself will equal the given number, there can be only one.
What is the nonenegative square root of a number?
Every number has two square roots ... a positive one and a negative one. Example: +2 and -2 are both square roots of 4, because when you multiply either of them by itself, the answer is 4. The positive square root of a number is the square root that's not negative. The non-negative square root of a number is the positive one.
