| 1 |
If the Discriminant of a quadratic equation is a perfect square, then roots are: |
- A. real and equal
- B. complex
- C. rational
- D. irrational
|
| 2 |
No. of ways of solving a quadratic equation: |
|
| 3 |
The roots of the equation 25x<sup>2</sup> - 30x + 9 = 0 are; |
- A. rational
- B. irrational
- C. equal
- D. complex
|
| 4 |
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
|
| 5 |
Four fourth roots of 625 are: |
- A. ±5,±5i
- B. ±5,±25i
- C. ±25,±25i
- D. none of these
|
| 6 |
|
- A.
- B.
- C.
- D. none of these
|
| 7 |
|
- A. quadratic equation
- B. reciprocal equation
- C. exponential equation
- D. none of these
|
| 8 |
For what value of k, the sum of the roots of the equation x<sup>2</sup> + kx + 4 = 0 is equal to the product of its roots: |
|
| 9 |
|
- A. linear equation
- B. Quadraticequation
- C. cubicequation
- D. radicalequation
|
| 10 |
Sum of all three cube roots of unity is: |
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