Q. 14.0( 4 Votes )
The values of k f A. ± 2√ 3
B. ± 3√ 2
C. ± 2√ 6
D. ± √ 6
Answer :
Any quadratic equation in the form ax2 + bx + c = 0 has equal roots if and only if Discriminant, D = 0
Where, D = b2 – 4ac
In the given equation,
a = 2
b = k
c = 3
Now, above equation will have equal roots if
D = 0
i.e.
(k)2 – 4(2)(3) = 0
⇒ k2 = 24
⇒ k= ±2√6
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Heights and Distances - II45 mins


Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation


RELATED QUESTIONS :
The sum of two nu
KC Sinha - MathematicsDivide 12 into tw
KC Sinha - MathematicsThe sum of the sq
KC Sinha - MathematicsThe differe
KC Sinha - MathematicsThe difference of
KC Sinha - MathematicsThe sum of a numb
KC Sinha - MathematicsThe difference of
KC Sinha - MathematicsDivide 12 into tw
KC Sinha - MathematicsTwo numbers diffe
KC Sinha - Mathematics