There are so many identities related to alpha and beta .i.e zeroes and coefficients please tell me the identities which can come in exam and are very important ?

Asked by Udit Lilhare | 25th May, 2013, 08:11: PM

Expert Answer:

The most important one is that for a quadratic equation, ax^2 + bx+c = 0
sum of roots (alpha+beta) = -b/a
and product of roots (alpha*beta) = c/a. 
Most of the other identities for quadratic equation can derived from these 2 equations itself. 

Answered by  | 25th May, 2013, 09:56: PM

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