| 1 |
Sum of all four fourth roots of unity is: |
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| 2 |
Four fourth roots of 625 are: |
- A. ±5,±5i
- B. ±5,±25i
- C. ±25,±25i
- D. none of these
|
| 3 |
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- A. quadratic equation
- B. reciprocal equation
- C. exponential equation
- D. none of these
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| 4 |
In ax<sup>2</sup> + bx + c = 0, if b<sup>2</sup> - 4ac > 0 and perfect square the roots are: |
- A. rational
- B. irrational
- C. equal
- D. complex
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| 5 |
If the sum of the roots of the equation kx<sup>2</sup> - 2x + 2k = 0 is equal to their product, then the value of k is: |
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| 6 |
Complex roots of real quadratic equation always occur in: |
- A. conjugate pair
- B. ordered pair
- C. reciprocal pair
- D. none of these
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| 7 |
The roots of the equation: |
- A. complex
- B. irrational
- C. rational
- D. none of these
|
| 8 |
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- A. linear equation
- B. Quadraticequation
- C. cubicequation
- D. radicalequation
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| 9 |
A numbers exceeds its square root by 6, the number is: |
- A. 6
- B. 3
- C. 9
- D. none of these
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| 10 |
The ration of the sum and product of roots of 7x<sup>2</sup> - 12x + 18 = 0 is: |
- A. 7:12
- B. 2:3
- C. 3:2
- D. 7:18
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