Complex Numbers and Quadratic EquationsNature of Roots (KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Math): Questions 1  2 of 2
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Question number: 1
» Complex Numbers and Quadratic Equations » Nature of Roots
Appeared in Year: 2013
Question
Let a, b be nonzero real numbers. Which of the following statements about the quadratic equation.
Is necessarily true?
(I) It has at least one negative root
(III) Both roots are negative
(II) Both its roots are real.
(IV) It has at least one positive root.
Select the correct option,
Choices
Choice (4)  Response  

a.  (III) and (IV) are correct 

b.  (I) and (II) are correct 

c.  (I), (II) and (III) are correct 

d.  (I) and (III) are correct 

Question number: 2
» Complex Numbers and Quadratic Equations » Nature of Roots
Appeared in Year: 2013
Question
The least positive integer n for which,
is
Choices
Choice (4)  Response  

a.  25 

b.  26 

c.  24 

d.  27 
