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The radical is the diving board that looks like a dividing symbol but has a check mark at the beginning. Inside the check mark is the index. If there is not one then it is understood to be a 2 for square root.

If a 3 is in the check mark it is cube root.

The root is how many times you use a factor to get a number.

The cube root of 27 is 3 because 3x3x3 =27.

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Q: What are radical and index?
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Related questions

What are the parts of radical expression?

Index, radicand, and radical :) lmfao


Parts of a radical expression?

Parts include the index, the radicand, and the radical.


Where is the index in a radical equation?

the index in a radical equation appears above and left of the root symbol and tells you what kind of root the radicand is.


What is a index in algebra?

An index in Algebra is the integer n in a radical defining the n-th root


Name the parts of a radical algebra?

There is the Index, the coefficient and the Radican


What to consider when arranging radicals?

When arranging radicals, it is important to consider the index of the radical, whether or not the radical is mixed or entire, and then the radicand.


Any radical expression with a negative radicand and a index is a real number?

Odd


Any radical expression with a radicand and an even index is not a real number?

negative


How do you evaluate a radical?

There are three steps on how to evaluate a radical. Some of the step-by-step instructions are multiply two radicals with the same index number by simply multiplying the numbers beneath the radicals, divide a radical by another radical with the same index number by simply dividing the numbers inside, and simplify large radicals using the product and quotient rules of radicals.


How do you express something in radical form?

Using a radical (square root) bar. I can't get one on the screen, but I'm sure you know what they look like. Example: fractional exponents can be rewritten in radical form: x2/3 means the cube root of (x2) ... write a radical with an index number 3 to show cube root and the quantity x2 is inside the radical. Any fractional exponent can be done the same way. The denominator of the fractional exponent becomes the index of the radical, but the numerator stays as a whole number exponent in the radical.


How do you write a radical with an odd index?

You could write is as 6^(1/3) or 6^(1/5).If you wanted to use the radical symbol, you would use a superscript 3 or 5 (respectively) in front of the radical symbol. Unfortunately, this browser does not support such luxuries.


How many roots in a radical problem if the index is odd?

An odd number. In the complex field, the number of roots is the same as the index. Complex (non-real) roots come in pairs (complex conjugates) so the number of real roots will also be odd.