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(Z) all the positive whole numbers along with their negative counterparts, and zero. Z = {... -3; -2; -1; 0; 1; 2; 3; ...}
an equation that contains at least one variable with an exponent.
numbers that are not real numbers, such as the square roots of negative numbers. Imaginary...
the difference between any two consecutive terms in an arithmetic sequence. The constant...
the line that best fits the data, calculated according to the least squares method of regression...