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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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โˆ™ 2009-05-17 17:33:27
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Q: Why i is used to represent square root of -1?
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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 square root of -19?

No negative number can have a real square root.In math and engineering, the symbol ' i ' is used to representthe square root of -1 .Then the square root of -19 can be written as 4.3589 i (rounded).


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.


What is the square root of the square root of 1?

The square root of 1 is also 1, so then you just take the square root of that, which is, again, 1.


What is the Square root of -1 Times Square root of -1?

0


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.


What is the square root of one ninth?

The square root of 1/9 is 1/3 because the square root of 1 is 1 and the square root of 9 is 3.


Square root of one half?

Square root of 1/2 = (1)/(square root of 2) = 1/1.4142 = 0.7071 Also Square root of 1/2 = Square root of 0.5 = 0.7071


How can you solve the equation x2 plus 3i equals 0?

x2+3i=0 so x2=-3i x=square root of (-3i)=square root (-3)square root (i) =i(square root(3)([1/(square root (2)](1+i) and i(square root(3)([-1/(square root (2)](1+i) You can multiply through by i if you want, but I left it since it shows you where the answer came from. Note: The square root of i is 1/square root 2(1+i) and -1/square root of 2 (1+i) to see this, try and square them!


How do you find the square root of a quarter?

a quarter is 1/4 and square root of 1/4 is square root (1/4)=square root of 1 divided by square root of 4 which is 1 divided by 2. So the answer is 1/2


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".


What the square root of 1?

Same Square root of 1 is 1


What is the square root of 1 plus the square root of 1 plus the square root of 64?

It is: 1+1+8 = 10


What number is its own square root?

The square root of 1 is 1.The square root of 0 is 0.


What numbers have a square root that is a square number?

1, as the square root of 1 is 1, and 1 itself is a square of 1.


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.


What is the square root of -729?

27i where i is the square root of -1.


What is the sign of the square root of -1?

In the same way that the square root of 25 can be -5 OR +5, the square root of -1 is -i or +i.


Is 1 a square root number?

The square root of 1 is just 1