If ∝ are the zeros of the polynomial f () = 2 − − 4 , then find the value of + −
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Answered by
2
Answer:
Step-by-step explanation:
f(x)=x
2
−x−4
α+β=1
αβ=−4
→
α
1
+
β
1
−αβ
=
αβ
α+β
−αβ
=
−4
1
−(−4)
=
4
−1
+4
=
4
15
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