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






2. In particular - the square of the imaginary unit is -1: The preceding definition of multiplication of general complex numbers follows naturally from this fundamental property of the imaginary unit. Indeed - if i is treated as a number so that di mean






3. Quotient






4. In the Rectangular Coordinate System - the direction to the right along the horizontal line is






5. Number X decreased by 12 divided by forty






6. A number that has factors other than itself and 1 is a






7. Less than






8. As the horizontal component - and imaginary part as vertical These two values used to identify a given complex number are therefore called its Cartesian - rectangular - or algebraic form.






9. 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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10. Any number that is exactly divisible by a given number is a






11. A curve in the plane






12. The place value which corresponds to a given position in a number is determined by the






13. A number is divisible by 3 if






14. A branch of geometry studying more general reflections than ones about a line - can also be expressed in terms of complex numbers.






15. Number symbols






16. A number is divisible by 5 if its






17. 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.






18. Sixteen less than number Q






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






20. If two equal quantities are multiplied by the same quantity - the resulting products are equal. If equals are multiplied by equals - the products are equal.






21. Does not have an equal sign (3x+5) (2a+9b)






22. First axiom of equality






23. The Arabic numerals from 0 through 9 are called






24. 2 -3 -4 -5 -6






25. A number is divisible by 6 if it is






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






27. The central problem of Diophantine geometry is to determine when a Diophantine equation has






28. 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:






29. 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.






30. Plus






31. A form of coding in which the value of each digit of a number depends upon its position in relation to the other digits of the number. The convention used in our number system is that each digit has a higher place value than those digits to the right






32. Number T increased by 9






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






34. A number is divisible by 8 if






35. If z is a real number (i.e. - y = 0) - then r = |x|. In general - by Pythagoras' theorem - r is the distance of the point P representing the complex number z to the origin.






36. 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.






37. More than






38. The defining characteristic of a position vector is that it has






39. 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.






40. Viewed in this way the multiplication of a complex number by i corresponds to rotating a complex number






41. Are used to indicate sets






42. LAWS FOR COMBINING NUMBERS






43. Any number that can be divided lnto a given number without a remainder is a






44. Decreased by






45. A number is divisible by 2 if






46. Subtraction






47. Since the elements of the set {2 - 4 - e} are the same as the elements of{4 - 2 - e} - these two sets are said to be






48. 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






49. If two equal quantities are divided by the same quantity - the resulting quotients are equal. If equals are divided by equals - the results are equal.






50. 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.)