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Original Answer: 2
This is actually incorrect, 2 is the square root of 4 not -4 since it does not take into account the presence of the negative.
In order to find the square root (sqrt) of -4 we need to consider two facts:
(1) -N = N x -1 , where N is any number.
(2) sqrt (X x Y) = sqrt (X) x sqrt (Y)
This gives sqrt (-N) = sqrt (N x -1) = sqrt (N) x sqrt (-1)
It is generally accepted that the square root of (-1) is represented by the imaginary number i . (For more on i see http://en.wikipedia.org/wiki/Imaginary_number)
Substituting 4 for N we get sqrt (-4) = sqrt (4) x i = 2i
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Why the value of square root is 1divided by 2?
0.5
What is the absolute value of a complex number?
The absolute value of a complex number a+bi is the square root of (a2+b2). For example, the absolute value of 4+9i is the square root of (42 + 92) which is the square root of 97 which is about 9.8489 (The absolute value of a complex number is not complex.)
What is 8 divided by square root 2?
4
What is the square root of 81 and 4?
The square root of 81 is 9 and the square root of 4 is 2!
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
What is the value of square root of 4?
It is: 2
What is the simplified square root of 56?
Square root of 56 = Square root of (4 x 14) = (Square root of 4) x (Square root of 14) = 2 x (Square root of 14) The actual value would be 2 x 3.741 = 7.482
What is the value of the square root of 100 4 squared?
5
Why the value of square root is 1divided by 2?
0.5
What is the absolute value of a complex number?
The absolute value of a complex number a+bi is the square root of (a2+b2). For example, the absolute value of 4+9i is the square root of (42 + 92) which is the square root of 97 which is about 9.8489 (The absolute value of a complex number is not complex.)
What is 4 square root?
the square root of 4 is 2 square root 2
The square root of a negative value is called an imaginary or number?
Yes. The letter i denotes the value of the "positive square root" of -1. So i² = -1. But also (-i)² = -1 as well. Remember that for every number there is a "positive" and "negative" square root. So if you want the square root of -4, you can do this: -4 = (-1)(4). So sqrt(-4) = sqrt[(-1)(4)] = sqrt(-1)*sqrt(4) = i*2 or -i*2. We usually write these as 2i and -2i.
9 square root 4 minus 12 square root 4?
9 square root 4 minus 12 square root 4 = -6
What is the value of the square root of square root 5?
1.495348781
What is the value of the expression square root of 56 divided by the square root of 14?
4
What is 8 divided by square root 2?
4
4 square root of negative 9?
4 square root of -9 = 4 square root of (-1)(9) = 4 square root of (i29) = 4(3i) = 12i
