GPSC Class 1 - 2 2016 Paper 1

Question 191
DIFFICULTCorrect: +1Incorrect: -1

કિંમત શોધો : (xy)(x2y2)1(x1+y1)(x-y)\left(x^{2}-y^{2}\right)^{-1}\left(x^{-1}+y^{-1}\right)(xy)(x2y2)1(x1+y1)​​

    a
    x2+2x1y1+y2x^{-2}+2 x^{-1} y^{-1}+y^{-2}x2+2x1y1+y2​​
    b
    x2y2x^{2} y^{2}x2y2​​
    c
    x1y2+y1x2x^{-1} y^{2}+y^{-1} x^{2}x1y2+y1x2​​
    d
    x1y1x^{-1} y^{-1}x1y1​​