| 1 |
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| 2 |
π, e are: |
- A. integers
- B. natural numbers
- C. rationalnumbers
- D. irrationalnumbers
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| 3 |
Product of a complex number and its conjugate is: |
- A. a real number
- B. irrationalnumber
- C. a complexnumber
- D. either real number or complexnumber
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| 4 |
Irrational numbers are: |
- A. terminating decimals
- B. non-terminating decimals
- C. non-terminating, repeating decimals
- D. non-terminating, non repeating
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| 5 |
Factors of x<sup>2</sup> + y<sup>2</sup> are: |
- A. (x + iy) (x - iy)
- B. (x + y) (x - y)
- C. (x + y) (x + y)
- D. none
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| 6 |
Conjugate of complex number (-a, -b) is: |
- A. (-a, b)
- B. (-a, -b)
- C. (a, -b)
- D. none of these
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| 7 |
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| 8 |
Multiplicative inverse of -i is: |
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| 9 |
The multiplicative identity of real numbers is: |
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| 10 |
Rational numbers are: |
- A. repeating decimals
- B. terminatingdecimals
- C. periodicdecimals
- D. all of these
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