Banner 0
Banner 1
Banner 2
Banner 3
Banner 4
Banner 5

Q.

α,β,γ are the roots of the equation x3-10x2+7x+8=0.
Match the following.
List - I                                                 List - II

 I)  α+β+γ                                      a)  -434

II)  α2+β2+γ2                                b)  -78

III)  1α+1β+1γ                             c)  86

IV)  αβγ+βγα+γαβ                     d)  0 


                                                           e)  10

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

e, c, b, a

b

d, c, a, b

c

e, c, a, b

d

e, b, c, a

answer is C.

(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

Ifα,β,γarerootsofx310x2+7x+8=0α+β+γ=10(α+β+γ)2=100α2+β2+γ2+2(αβ+βγ+γα)=100α2+β2+γ2=1002(7)10014=861α+1β+1γ=αβ+βγ+γααβγ78αβγ+βγα+γαβ=α2+β2+γ2αβγ868434

Watch 3-min video & get full concept clarity

Best Courses for You

JEE

JEE

NEET

NEET

Foundation JEE

Foundation JEE

Foundation NEET

Foundation NEET

CBSE

CBSE

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon