If the roots of the equation 8x3−14x2+7x−1=0are in GP, then the roots are
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
1,12,14
b
2,4,8
c
3, 6 , 12
d
None of these
answer is A.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
Since, the roots of the equation 8x3−14x2+7x−1=0are in GP. Let the roots αβ,α,αβ,β≠0. Then, the product of roots is α3=18⇒α=12 and hence, β=12So, roots are 1,12,14