Q. 75.0( 3 Votes )

<span lang="EN-US

Answer :

Let one zero of polynomial ax2 + bx + c be α


The other zero is double hence 2α


Sum of roots of quadratic





Product of roots of quadratic




Substituting value of α from (i)





2b2 = 9ac


Hence proved


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