Question 626274
={{{(1)-(1/(1-1/x))}}}
={{{(1)-(1/((x-1)/x))}}}
={{{(1)-(x/(x-1))}}}
={{{((x-1)-(x))/(x-1)}}}
={{{(x-1-x)/(x-1)}}}
={{{(cross(x)-1-cross(x))/(x-1)}}}
={{{-1/(x-1)}}}
={{{1/(1-x)}}}