1 1 vote In the following system of equations $2^{y-x} \left(x+y \right)=1$ & $\left(x+y \right)^{x-y}=2$ the value of $xy$ is : $\frac{1}{2}$ $\frac{3}{4}$ $\frac{1}{4}$ $1$ Quantitative Aptitude nielit2019feb-scientistd quantitative-aptitude system-of-equation + – Lakshman Bhaiya 12.2k points 1.3k views answer comment Share Follow Print 0 reply Please log in or register to add a comment.