Find the value of α2 + β2 if α + β = 2 and the distance between points (1, α) and (β, 1)is 3 units

Assessment: JAMB UTME - Mathematics - 2004 Subject: General Mathematics

Question 1 Report

Find the value of α2 + β2 if α + β = 2 and the distance between points (1, α) and (β, 1)is 3 units
Answer Details
PQ=√(β−1)2+(1−α)23=√(β2−2β2+1+1−2α+α2)3=√(α2+β2−2α+2β+2)3=√(α2+β2−2(α+β)+2)3=√(α2+β2−2∗2+2)3=√(α2+β2−2)9=(α2+β2−2)α2+β2=9+2α2+β2=11
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