1/alpha-1/beta find the w
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1) By algebraic identity, (a-b)² = (a+b)² - 4ab
2) Using this, (α - β)² = (α + β)² - 4αβ
3) This shows that α - β = √(α + β)² - 4αβ
2) Using this, (α - β)² = (α + β)² - 4αβ
3) This shows that α - β = √(α + β)² - 4αβ
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