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Certain functions, when solving to find the zeros (value which makes the function equal zero), the only value which will work has an imaginary component. Note that a parabola (graph of a quadratic or 2nd order polynomial) can touch the x-axis at a single point, or 2 points or no points. If it does not touch or cross the x-axis, then the root (or zeros) of the function are complex with imaginary components.
Technically, all real numbers are a subset of complex numbers, so all numbers are complex - but this is not how we normally refer to them. We usually say that a number is real, or it is imaginary, or it is complex.
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What do you use to stand for numbers in algebra?
You use variables to stand for numbers in algebra
Algebra the branch of mathematics is the study of what?
Calculus is the study, or the analysis of functions. Real functions, complex functions etc. That's why it is also known as functional analysis. Algebra is the study of "numbers". No, not 1, 2, 3. But more, things like fields, rings, groups, things that act like numbers (hence are numbers by the Golden rule of Algebra). They create tools like matrices to solve problems (transformations) on numbers.
What is the difference between arithmetic and algebra?
Arithmetic: The mathematics of integers, rational numbers, real numbers, or complex numbers under addition, subtraction, multiplication, and division. Algebra: A branch of mathematics in which symbols, usually letters of the alphabet, represent numbers or members of a specified set and are used to represent quantities and to express general relationships that hold for all members of the set.
What is an area in math where numbers are represented by letters?
That is called "algebra".That is called "algebra".That is called "algebra".That is called "algebra".
What is the gcf of 189 in algebra?
You need at least two numbers to find a GCF.
