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Because there is no "real" sqrt of a negative number, i is used as a symbol, eg sqrt -4 = 2i

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16y ago

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Related Questions

What is the square root of four?

The answer is 2i. When dealing with negative square roots, the expression i is used to represent the square root of -1.


What is the square root of negative four?

The answer is 2i. When dealing with negative square roots, the expression i is used to represent the square root of -1.


What is the square root of minus 4?

The answer is 2i. When dealing with negative square roots, the expression i is used to represent the square root of -1.


How do you represent the square root of 1?

the square root of 1 is 1. The square root of -1 is j (if you are an engineer) or i (if you are a math geek)


What is the symbol used to represent a negative square root of a number?

Negative square root is -√Square root of negative one is i.


What is a math word for i?

'i' is often used to represent the imaginary part of a complex number, and is equal to the square root of -1.


What is the symbol used to represent thenonnegative square root of a number?

The negative square root of a number is expressed as -√n or -n^½. The question probably may refer to the square root of a negative number. In mathematics there is an identity i² = -1 so that i = √-1 The square root of a negative number can be shown in several ways. For Example : √-36 = √( -1 x 36) = √-1 x √36 The square root of 36 is ±6, and the square root of -1 is i. The solution to √-36 is therefore ±6i.


Does the imaginary number in math represent 1 or -1?

2


How do you represent root 2 to root 9 in the number line?

By root, I think you mean square root. The square root of 2 is approx. 1.414. The square root of 9 = 3, so this goes exactly at 3 on the number line. Square root 2 will be less than 1/2 way between 1 and 2 on the number line.


How do you represent root 10 on number line?

friends,root 10 is according to our pythagores thoream.root 10=square of 3 and square of 1 can be represented on a number line.


Square root of -1 is iota How?

Mathematicians decided that, since the square root of a negative number does not exist, they would use the first letter of "imaginary" to represent this "value".


Why is the square root of -1 equal to iota?

It is just a notation, used to make our calculations easier. Square root of -1 is undefined.