if alpha and beta are zeroes of polynomial f (x)=x²-5x+k such that alpha - beta=1,find the value of k
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Answered by
2
heya dear your and is here..
_____
as
alpha=e
beta =f
e-f=1
we know
(e+f)^2-4ef=(e-f)^2
(-b/a)^2-4(c/a)=1
(5/1)^2-4(k/1)=1
25-4k=1
4k=24
k=6
hope it helps
_____
as
alpha=e
beta =f
e-f=1
we know
(e+f)^2-4ef=(e-f)^2
(-b/a)^2-4(c/a)=1
(5/1)^2-4(k/1)=1
25-4k=1
4k=24
k=6
hope it helps
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