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What imaginary number means in math is: "the square root of minus 1"
Which is true but confusing, so
All "real" numbers lie in a straight line from minus very large, through zero, to plus very large.
Now draw that line on a sheet of paper (don't worry about the fact that the line theoretically goes way beyond the paper).
See all the white space left ?
That's where "imaginary" numbers all fit.
"imaginary" is just a word they use for those numbers that exist in more than one dimensional space.
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Does the imaginary number in math represent 1 or -1?
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What is an unreal in math?
The only thing I can think of that you might mean is an imaginary or complex number. Since there is no solution to √(-1) mathematicians labeled it as i which is the imaginary number, and any number that includes purely i is also imaginary. Complex numbers are a mix of both real and imaginary numbers. for example 3 is real, 5i is imaginary and 3+5i is complex. Hopefully this answers what you meant.
What is a number added to 9 in math?
Any number, real or imaginary, can be the sum of another number plus 9.
What is the i in math?
"i" is the square root of -1. Since there is no real number whose square is negative, i is an imaginary number.
What is the letter j in the math alphabet?
In math, j is the imaginary number that is the square root of positive one, but is not equal to one.
