if alpha and beta are zeros of the polynomial f x is equal to x square - 5 x + K such that Alpha minus beta is equal to 1 find the value of k
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Step-by-step explanation:
f(x)=x²-5x+k
α and β are zeroes of f(x).
α+β=-b/a
α+β=-(-5/1)
α+β=5. ........(i)
αβ=c/a
αβ=Κ .............(ii)
α–β=1. (squaring on both sides)
(α–β)²=1
α²+β²–2 α β=1
(α+β)²–4 α β=1
Put the values of (i)and (ii)
25–4K=1
-4K=-24
K=6
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