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# What is the symbol used to denote a root?

Wiki User

2013-06-17 14:51:57

The radical symbol √ (with a line over what you're taking a root of) denotes root.

The symbol without any other numbers, means square root, while with a number like 3√ means take cube root, 4√ fourth root, etc.

If you want to type this symbol in Windows, hold down the key on the keyboard, then type (on the number pad) 251, then let go of the key.

You can also denote roots by fractional exponents: 1/2 power is the square root,

1/3 power is the cube root, etc and this works if you have an xy (exponentiation)

key on your calculator and want to compute roots.
The symbol used to make a root is √

Wiki User

2013-06-17 14:51:57
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