Algebra

Quantitative Aptitude (CGL)

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If x = 2 +√3, y = 2 – √3 and z = 1, then what is the value of (x/yz) + (y/xz) + (z/xy) + 2 [(1/x) + (1/y) + (1/z)]?

Explanation:

according to question
given equation
(x/yz) + (y/xz) + (z/xy) + 2 [(1/x) + (1/y) + (1/z)] multiply by xyz
then x^2+y^2+z^2+2(xy+zx+zy)=(x+y+z)^2
=>(2++√3+2 – √3+1)^2=5^2=25

By: MIRZA SADDAM HUSSAIN

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