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#1 2012-10-15 08:16:56
- jonny
- Guest
Polynomials
Let
and suppose thatand have a common irrational root , then
which one is Right
(d) none
#2 2012-10-17 19:57:09
- sameer mishra
- Full Member
Offline
Re: Polynomials
d is correct answer of this question
we know that irrational root occur in conjugate pair
we assume g(x)
x-y)f(x)
(x-y)(x^2+ax+b)
x^3+ax^2+bx-yx^2-axy-by=x^3+px+q
x^3+(a-y)x^2+(b-ay)x-by=x^3+px+q
a=y
b-ay=p
-by=q
from here no relation will match