Multiple Choice Questions on If a 5 b 6 c 10 then value is a 3 b 3 c 3 3abc 5 ab bc ca a 2 b 2 c 2 5 ........ for CDS Exam Preparation

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Multiple Choice Questions

If a 5 b 6 c 10 then value is a 3 b 3 c 3 3abc 5 ab bc ca a 2 b 2 c 2 5 ........

Quantitative Aptitude (CDS) Simplification
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     If a=-5 ,b=-6,c=10 then value is (a^3 +b^3 +c^3 -3abc +5)/(ab+bc+ca-a^2 -b^2 -c^2 +5)

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    Explanation:

    (a^3 +b^3 +c^3 -3abc +5)/(ab+bc+ca-a^2 -b^2 -c^2 +5)
    =((-5^3)+(-6^3) +(10^3) -(900)+5)/(30-60-50-(-5)^2 -(-6)^2 -10^2 +5)
    =((-125-216+1000)-900+5)/(-80-25-36-100+5)
    =(-241+5)/-241+5
    =(-236)/(-236)
    =1 

    By: bhavesh kumar singh
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