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NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
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If the roots of the quadratic equation x2 + 2x + k = 0 are real, then
A
k < 0
B
k ≤ 0
C
k < 1
D
k ≤ 1
2
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
If k is one of the roots of the equation x(x + 1) + 1 = 0, then what is its other root?
A
1
B
-k
C
k2
D
-k2
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