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91 is a Prime number, so you have to use a calculator, but if you had a number such as 99 use this method: divide 99 by a number that goes into it evenly, such as 9, now you have 9 and 11, 11 is prime so you set it aside, leaving 9. now divide 9 by a number, 3 is the only one in this situation, so you have two 3's. once you only have prime numbers put them with likes, so now you have 3,3,11, all numbers that have a pair you take out one and cross off that pair, leaving those without under the radical (square root). in this case the answer is 3 multiplied by the square root of 11. in order to find the square root of any prime number, a calculator is required.
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Is the square root of 91 irrational or a rational number?
irrational
What is the simplest radical from of the square root of 91?
As 91 = 7 × 13, √91 doesn't really simplify. It can be changed into: √91 = √(7×13) = √7 √13
What are the dimensions of a square with an area of 91m2?
Each side is the square root of 91 meters, which is about 9.539392 meters.
Is the square root of eighteen an irrational number?
Yes. It would be 21/2 * 91/2, or "three root two". Root two is an irrational number, so it's products - such as root 18, will be as well.
This is the symbol for square root?
The square root SYMBOL is √ Occasionally it may have a superscript 2 to prevent any confusion with other types of roots.... ²√ Although not a Symbol, the square root can also be identified by using an index or power of ½. So, √9 = 3, ²√9 = 3 91/2 = 3............are three ways of showing that the square root of 9 is 3.
