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Question Number 90581 by hardylanes last updated on 24/Apr/20
giventhatαandβarerootsoftheequationaχ2+bχ+c=0.showthatλμb2=ac(λ+μ)2whereαβ=λμ
Answered by maths mind last updated on 24/Apr/20
⇔λμb2a2=ca(λ+μ)2⇔λμ.b2a2=ca(λμ+1)2..E(ba)2=(α+β)2ca=αβE⇔αβ(α+β)2=αβ(1+αβ)2=αβ(α+β)2..True
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