1
NDA 2016 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
If c > 0 and 4a + c < 2b, then ax2 $$-$$ bx + c = 0 has a root in which one of the following intervals?
A
(0, 2)
B
(2, 3)
C
(3, 4)
D
($$-$$2, 0)
2
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

Let $$\alpha$$ and $$\beta$$ ($$\alpha$$ < $$\beta$$) be the roots of the equation x2 + bx + c = 0, where b > 0 and c < 0.
Consider the following

1. $$\beta$$ < $$-$$ $$\alpha$$

2. $$\beta$$ < | $$\alpha$$ |

Which of the above is/are correct?
A
Only 1
B
Only 2
C
Both 1 and 2
D
Neither 1 nor 2
3
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Read the following information carefully and answer the questions given below.

Let $$\alpha$$ and $$\beta$$ ($$\alpha$$ < $$\beta$$) be the roots of the equation x2 + bx + c = 0, where b > 0 and c < 0.
Consider the following

1. $$\alpha$$ + $$\beta$$ + $$\alpha$$$$\beta$$ > 0

2. $$\alpha$$2$$\beta$$ + $$\beta$$2$$\alpha$$ > 0

Which of the above is/are correct?
A
Only 1
B
Only 2
C
Both 1 and 2
D
Neither 1 nor 2
4
NDA 2016 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
If x2 $$-$$ px + 4 > 0 for all real values of x, then which one of the following is correct?
A
| p | < 4
B
| p | $$\le$$ 4
C
| p | > 4
D
| p | $$\ge$$ 4
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