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CLEP General Mathematics: Number Systems And Sets

Subjects : clep, math
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • 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. Increased by






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






3. Decreased by






4. 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






5. 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:






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






7. 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






8. The sum of two complex numbers A and B - interpreted as points of the complex plane - is the point X obtained by building a parallelogram three of whose vertices are O - A and B. Equivalently - X is the point such that the triangles with vertices O -






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






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






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






12. 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






13. Product






14. Sum






15. The Arabic numerals from 0 through 9 are called






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






17. 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.






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






19. Number T increased by 9






20. Sixteen less than number Q






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






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






23. LAWS FOR COMBINING NUMBERS






24. 2 -3 -4 -5 -6






25. 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






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






27. 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.






28. Less than






29. A number is divisible by 9 if






30. 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.






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






32. Are used to indicate sets






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






34. One term (5x or 4)






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






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






37. A number is divisible by 6 if it is






38. 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.






39. This law can be applied to subtraction by changing signs in such a way that all negative signs are treated as number signs rather than operational signs.That is - some of the addends can be negative numbers.






40. 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






41. 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






42. 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






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






44. 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






45. 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.






46. 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






47. Total






48. Number symbols






49. A curve in the plane






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