1.

2.If α, β are the roots of quadratic equation x2 + px + q = 0 and y, δ are the roots of x2 + px-rao,en (α-y). (α-8) is equal to :

Answer»

x2+px+q=0 have roots a,b

a=b=-p --(1)

ab = q --(2)

a2+pa+q=0 --(3)

x2+px−r=0 have roots g,d

g+d=-p --(4)

gd = -r --(5)

(a-g)(a-d) = a2−(g−d)a+gd

= a2+pa−r = -q-r =-(q+r) --from (3)

Therefore -(q+r) id the answer.

answer phele hi MIL gya

but thanks



Discussion

No Comment Found