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if alpha ,beeta are the roots of x square+px-q=0 and gama,delta are roots of x square+px+r=0 , then the value of (alpha-gama)(alpha-delta) is (a)- p+q (b)- q-r (c)- r-q (d)- q+r

if alpha ,beeta are the roots of x square+px-q=0 and gama,delta are roots of x square+px+r=0 , then the value of (alpha-gama)(alpha-delta) is  (a)- p+q  (b)-  q-r  (c)-  r-q   (d)-  q+r

Grade:12th pass

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
8 years ago
Hint: alpha + beta = -p, alpha*beta = -q. gamma + delta = -p and gamma*delta = r. Simply the given equation and replace the values with the above given values. Thanks.

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