2007-07-11 02:22:27 · 6 answers · asked by irish i 1 in Science & Mathematics ➔ Mathematics
Lesson No.: 1
Number systems—that is, collections of mathematical objects (numbers) that can be operated on by some or all of the standard operations of arithmetic: addition, multiplication, subtraction, and division. These main number systems are:
a. The natural numbers N. These numbers are the positive (and zero) whole numbers 0, 1, 2, 3, 4, 5, …. If two such numbers are added or multiplied, the result is again a natural number.
b. The integers Z. These numbers are the positive and negative whole numbers …, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, …. If two such numbers are added, subtracted, or multiplied, the result is again an integer.
c. The rational numbers Q. These numbers are the positive and negative fractions p/q where p and q are integers and q ¹ 0. If two such numbers are added, subtracted, multiplied, or divided (except by 0), the result is again a rational number.
d. The real numbers R. These numbers are the positive and negative infinite decimals (including terminating decimals that can be considered as having an infinite sequence of zeros on the end). If two such numbers are added, subtracted, multiplied, or divided (except by 0), the result is again a real number.
e. The complex numbers C. These numbers are of the form x + iy where x and y are real numbers and i = sq. rt.(-1). If two such numbers are added, subtracted, multiplied, or divided (except by 0), the result is again a complex number.
2007-07-12 18:29:43 · answer #1 · answered by gostob2 3 · 0⤊ 0⤋
from my adventure of utilising on line banking for some years 3-5 days and at some point to place up (12-24 hours) in economic corporation or comparable economic corporation flow or pay from acct. I even have 5 on line economic corporation debts and actually like maximum yet I DO HAVE a prevalent!
2016-11-09 00:18:05 · answer #2 · answered by ? 4 · 0⤊ 0⤋
In addition you get the sum; in subtraction you get the difference.
2007-07-14 23:33:19 · answer #3 · answered by Jun Agruda 7 · 2⤊ 0⤋
What do you mean? I don't understand the question.
2007-07-11 02:52:40 · answer #4 · answered by Anonymous · 0⤊ 0⤋
that's not a question
2007-07-11 02:25:18 · answer #5 · answered by leaptad 6 · 1⤊ 0⤋
???
2007-07-11 02:52:43 · answer #6 · answered by steiner1745 7 · 0⤊ 0⤋