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CLEP General Mathematics: Number Systems And Sets

Subjects : clep, math
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. As shown earlier - c - di is the complex conjugate of the denominator c + di.






2. A letter tat represents a number that is unknown (usually X or Y)






3. Has an equal sign (3x+5 = 14)






4. Decreased by






5. Another way of encoding points in the complex plane other than using the x- and y-coordinates is to use the distance of a point P to O - the point whose coordinates are (0 - 0) (the origin) - and the angle of the line through P and O. This idea leads






6. This law states that the sum of two or more addends is the same regardless of the order in which they are arranged. Means to change - substitute or move from place to place.






7. A number is divisible by 8 if






8. Increased by






9. Studies algebraic properties and algebraic objects of interest in number theory. (Thus - analytic and algebraic number theory can and do overlap: the former is defined by its methods - the latter by its objects of study.) A key topic is that of the a






10. More than one term (5x+4 contains two)






11. A number is divisible by 4 if






12. G - E - M - A Grouping - Exponents - Multiply/Divide - Add/Subtract






13. This law can be applied to subtraction by changing signs so that all negative signs become number signs and all signs of operation are positive.






14. The base which is most commonly used is ten - and the system with ten as a base is called the decimal system (decem is the Latin word for ten). Any number is assumed - unless indicated - to be a






15. The complex conjugate of the complex number z = x + yi is defined to be x - yi. It is denoted or . Geometrically - is the

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16. Allow the variables in f(x -y) = 0 to be complex numbers; then f(x -y) = 0 defines a 2-dimensional surface in (projective) 4-dimensional space (since two complex variables can be decomposed into four real variables - i.e. - four dimensions). Count th






17. Total






18. The smallest of four sonsecutive whole numbers - the biggest of which is K+6






19. A number that has no factors except itself and 1 is a






20. In terms of its tools - as the study of the integers by means of tools from real and complex analysis - in terms of its concerns - as the study within number theory of estimates on size and density - as opposed to identities.






21. In the Rectangular Coordinate System - On the vertical line - direction ________ is positive






22. In the Rectangular Coordinate System - the direction to the left along the horizontal line is






23. This formula can be used to compute the multiplicative inverse of a complex number if it is given in






24. Consists of all numbers of the form - where a and b are rational numbers and d is a fixed rational number whose square root is not rational.






25. The square roots of a + bi (with b ? 0) are - where and where sgn is the signum function. This can be seen by squaring to obtain a + bi.






26. The greatest of 3 consecutive whole numbers - the smallest of which is F






27. Remainder






28. Are used to indicate sets






29. The Arabic numerals from 0 through 9 are called






30. The number of digits in an integer indicates its rank; that is - whether it is 'in the hundreds -' 'in the thousands -' etc. The idea of ranking numbers in terms of tens - hundreds - thousands - etc. - is based on the






31. Any number that is not a multiple of 2 is an






32. This law states that the sum of three or more addends is the same regardless of the manner in which they are grouped. suggests association or grouping.






33. A number is divisible by 2 if






34. In the Rectangular Coordinate System - On the vertical line - direction _______ is negative






35. Number X decreased by 12 divided by forty






36. If the same quantity is subtracted from each of two equal quantities - the resulting quantities are equal. If equals are subtracted from equals - the results are equal.






37. Sixteen less than number Q






38. Is called the real part of z - and the real number b is often called the imaginary part. By this convention the imaginary part is a real number - not including the imaginary unit: hence b - not bi - is the imaginary part. (Others - however call bi th






39. A number is divisible by 5 if its






40. The finiteness or not of the number of rational or integer points on an algebraic curve






41. A number is divisible by 6 if it is






42. A number is divisible by 3 if






43. This law states that the product of two or more factors is the same regardless of the order in which the factors are arranged. Negative signs require no special treatment in the application of this law.






44. Product






45. Work on the problem of general polynomials ultimately led to the fundamental theorem of algebra -






46. This law states that the product of three or more factors is the same regardless of the manner in which they are grouped. Negative signs require no special treatment in the application of this law.






47. Are not necessary. That is - the elements of {2 - 2 - 3 - 4} are simply {2 - 3 - and 4}






48. Are often studied as extensions of smaller number fields: a field L is said to be an extension of a field K if L contains K. (For example - the complex numbers C are an extension of the reals R - and the reals R are an extension of the rationals Q.)






49. These are emphasised in a complex number's polar form and it turns out notably that the operations of addition and multiplication take on a very natural geometric character when complex numbers are viewed as position vectors:






50. One asks whether there are any rational points (points all of whose coordinates are rationals) or integral points (points all of whose coordinates are integers) on the curve or surface. If there are any such points - the next step is to ask how many