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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. 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.






2. 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






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






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






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






6. A number is divisible by 4 if






7. The numbers which are used for counting in our number system are sometimes called






8. 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.






9. 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






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






11. Product of 16 and the sum of 5 and number R






12. 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






13. Sum






14. Is a number that can be expressed in the form where a and b are real numbers and i is the imaginary unit - satisfying i2 = -1. For example - -3.5 + 2i is a complex number. It is common to write a for a + 0i and bi for 0 + bi. Moreover - when the imag






15. A number is divisible by 2 if






16. 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






17. LAWS FOR COMBINING NUMBERS






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






19. 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






20. 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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21. Product






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






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






24. The Arabic numerals from 0 through 9 are called






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






26. Increased by






27. The objects or symbols in a set are called Numerals - Lines - or Points






28. First axiom of equality






29. 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.






30. 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.






31. Less than






32. 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.






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






34. 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.






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






36. Quotient






37. 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






38. A curve in the plane






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






40. 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.






41. 2 -3 -4 -5 -6






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






43. 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






44. 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






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






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






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






48. Total






49. Are used to indicate sets






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