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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. 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.)






2. Sixteen less than number Q






3. This law combines the operations of addition and multiplication. The distribution of a common multiplier among the terms of an additive expression.






4. 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.






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






6. Any number that la a multiple of 2 is an






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






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






9. 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






10. Number symbols






11. 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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12. Allow for solutions to certain equations that have no real solution: the equation has no real solution - since the square of a real number is 0 or positive.






13. An equation - or system of equations - in two or more variables defines






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






15. 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.






16. Is any complex number that is a solution to some polynomial equation with rational coefficients; for example - every solution x of (say) is an algebraic number. Fields of algebraic numbers are also called algebraic number fields - or shortly number f






17. First axiom of equality






18. 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.






19. Less than






20. As shown earlier - c - di is the complex conjugate of the denominator c + di.






21. The objects in a set have at least






22. The Arabic numerals from 0 through 9 are called






23. Integers greater than zero and less than 5 form a set - as follows:






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






25. The number touching the variable (in the case of 5x - would be 5)






26. Addition of two complex numbers can be done geometrically by






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






28. 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






29. One term (5x or 4)






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






31. Any number that is exactly divisible by a given number is a






32. 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.






33. Product






34. LAWS FOR COMBINING NUMBERS






35. 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






36. 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.






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






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






39. A number is divisible by 5 if its






40. Are used to indicate sets






41. Sum






42. Begin by taking out the smallest factor If the number is even - take out all the 2's first - then try 3 as a factor






43. The number without a variable (5m+2). In this case - 2






44. Number T increased by 9






45. 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.






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






47. 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.






48. 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






49. Implies a collection or grouping of similar - objects or symbols.






50. The real and imaginary parts of a complex number can be extracted using the conjugate: