Question 1083001

If {{{t >0}}} then 


{{{(t^2+t)(t^3+t^2) /( (t^2+t)+(t^3+t^2) )}}}


{{{t(t+1)t^2(t+1) /(t (t+1)+t^2(t+1) )}}}


{{{t*t^2(t+1)(t+1) /((t+t^2)(t+1) )}}}


{{{t*t^2(t+1)(t+1) /(t(t+1)(t+1) )}}}


{{{cross(t)*t^2cross((t+1)(t+1)) /(cross(t)cross((t+1)(t+1) ))}}}

{{{t^2}}}


D.{{{t^2 }}}