Q. 64.0( 20 Votes )

Find the value of

Answer :

Roots of an equation are given by the formula:

x = , where, D = b2 – 4ac


For equal roots, D = 0


On comparing with ax2 + bx + c = 0, we get: a = m, b = -7m, c = 49


Therefore, D = 0


49m2 – 4m(49) = 0


49m (m - 4) = 0


m = 0 or m = 4

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses