Asked by rock a by zombie
what is the square root of -1
Answers
Answered by
Writeacher
http://www.wolframalpha.com/input/?i=sqr+of+-1
Otherwise, you'll need to wait for a math tutor to come online.
Otherwise, you'll need to wait for a math tutor to come online.
Answered by
Steve
The square root of -1 is an extension to the real numbers, so that every degree-n polynomial has exactly n roots. It is written as i.
So, √-16 = √(16* -1) = √16√-1 = 4i
It has no "value" that you can assign a number to. It is not a number as normally considered.
Remember the quadratic formula? You might come up with a situation where there are no roots. That is, for no real value of x is y=0. As in y = x^2 + 4
However, if you allow complex numbers, of the form a+bi where a and b are real, then a quadratic always has exactly two roots.
So, √-16 = √(16* -1) = √16√-1 = 4i
It has no "value" that you can assign a number to. It is not a number as normally considered.
Remember the quadratic formula? You might come up with a situation where there are no roots. That is, for no real value of x is y=0. As in y = x^2 + 4
However, if you allow complex numbers, of the form a+bi where a and b are real, then a quadratic always has exactly two roots.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.