Q.
If the roots of the equation 8x3-14x2+7x-1=0 are in G.P., then the roots are
see full answer
Start JEE / NEET / Foundation preparation at rupees 99/day !!
21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
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
Let the roots be αβ,α, αβ, β≠0. Then the product of roots is α3=--18=18⇒α=12 and hence β=12, so roots are 1, 12.14
Watch 3-min video & get full concept clarity