state gov AP Police SI (Pre+Mains) Mock Test 2022 Quantitative Aptitude Algebra Linear Equation in 2 Variable
If (x + y + z) = 0 then find the value of \(\frac{{{{\rm{x}}^2}{\rm{\;}} + {\rm{\;}}{{\rm{y}}^2} - {\rm{\;}}{{\rm{z}}^2}}}{{{{({\rm{x\;}} + {\rm{\;y}})}^{2{\rm{\;}}}} - {\rm{\;}}{{\left( {{\rm{x\;}} - {\rm{\;y}}} \right)}^2}{\rm{\;}}}}\)
1
1
2
-1/2
3
-1/4
4
1/2