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in complex j2=-1 so j equals square root of -1

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15y ago

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Why j2 equals -1?

3


How do you represent the square root of 1?

Square root ( 1) = +/-1 Remember -1 X -1 = (+)1 +1 x +1 = (+)1 So the square root of (+)1 can be either (+)1 or (-)1 However, do NOT confuse with the 'square root (-1)' . Mathematicians for centuries have been pondering over this problem, and still no answer!!!!!


How do you simplify the square root -9?

The square root of -1 is i, or j sometimes, if you are an engineer.Therefore it can be rewritten as 3i.


What is the square root of negative 3?

=i(1.73205) where i is the square root of -1 in electrical and electronic engineering the the square root of -1 is generally referred to as 'j' as i usually denotes current.


Could a negative number be under a square root symbol?

Actually a negative number can be under a square root symbol. This becomes very useful in electrical calculations. The square root of -1 is j. That is, j2 = -1.


What do mathematicians call square -1?

The square root of -1 is "i". However engineers use "j", but it's essentially the same thing.


What is the square root of -25 divided by suqare root of 9 minus square root of-1?

[ sqrt(-25) / sqrt(9) ] - [ sqrt(-1) ] = j5/3 - j1 = j 2/3


What is the square root of 76?

8.71788.717797


What is the square root of 0.0121?

0.11


K j equals j but how is that?

K j equals j when K is 1 or j is 0.


What is the characteristic of square root -1?

It is the imaginary unit, expressed as i (j for all you physicists) and is used in non-real answers and such


Example of imaginary number?

The canonical example is the square root of -1. Mathematicians use the symbol i to represent it, electrical engineers use j because i is already busy.