Q.
If the roots of the equation 8x3−14x2+7x−1=0are in GP, then the roots are
see full answer
Want to Fund your own JEE / NEET / Foundation preparation ??
Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*
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)
Ready to Test Your Skills?
Check your Performance Today with our Free Mock Test used by Toppers!
Take Free Test
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
Watch 3-min video & get full concept clarity