Simplifying Roots Worksheets
How to Simplify Square Roots with Negative Numbers - Every nonnegative actual number 'x', has a unique nonnegative square root, known as the principal square root, which is signified by '√x', where the symbol '√' is called the radical sign or radix. For instance, the principal square root of 9 is 3, which is denoted by √9 = 3, because 32 = 3 x 3 = 9 and 3 is nonnegative. Whenever there is a negative sign under the square root, it is considered as a complex number, and since it is a complex number we need to handle it by using the sign "i" (Iota) which is an imaginary number and is equal to √-1. So if we had to find out the square root of √-16 we would write it as √16*√-1 and to go even more further we simplify and write it as 4i. So the square root of √-16 is 4i.
The Words Of Isaac Newton...
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