| 1 |
Sum of roots of ax<sup>2</sup> + bx + c = 0 is equal to product of roots only if: |
- A. a+c=0
- B. b+c=0
- C. a+b=0
- D. a+b+c=0
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| 2 |
For what value of k, the roots of the equation x<sup>2</sup> + √k x + 2 = 0 are equal: |
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| 3 |
If P(x) is a polynomial of degree m and Q(x) is a polynomial of degree n, the product P(x) . Q(x) will be a polynomial of degree: |
- A. m . n
- B. m - n
- C. m + n
- D. m × n
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| 4 |
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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| 5 |
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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| 6 |
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- A. quadratic equation
- B. reciprocal equation
- C. exponential equation
- D. none of these
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| 7 |
If the roots of x<sup>2</sup> - bx + c = 0 are two consecutive integers, then: b<sup>2</sup> - 4ac = |
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| 8 |
Sum of all four fourth roots of unity is: |
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| 9 |
3<sup>2x</sup> - 3<sup>x</sup> - 6 = 0 is: |
- A. reciprocal equation
- B. exponentialequation
- C. radicalequation
- D. none of these
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| 10 |
Solution set of the simultaneous equations : x + y = 1, x - y = 1 is: |
- A. {(0,0)}
- B. {(1,0)}
- C. {(0,1)}
- D. {(1,1)}
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