Answers

2015-09-15T06:36:47+05:30
Given p,q are the roots of ax^2 - bx + c=0

Then p+q=?

As we know p and q are the roots then
(x-p)(x-q) = 0
x^2-qx-px+pq=0
x^2-x(p+q)+pq=0

By given equation
a=1
b=(p+q)
c=pq
(p+q) =b/a

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