Question 1149795

{{{1^2/2 + 3^2/6 + 5^2/10 + 7^2/14}}} + ... +{{{ 103^2/206}}} .........simplify


={{{1^2/2 + 3^2/(2*3) + 5^2/(2*5) + 7^2/(2*7)}}} + ... + {{{103^2/(2*103)}}} 


={{{1^2/2 + 3^cross(2)/(2*cross(3)) + 5^cross(2)/(2*cross(5)) + 7^cross(2)/(2*cross(7))}}} + ... + {{{103^cross(2)/(2*cross(103))}}}

={{{1/2 + 3/2 + 5/2 + 7/2}}} + ... + {{{103/2 }}}


=({{{1 + 3 + 5 + 7}}} + ... + {{{103 }}})/{{{2}}}


= {{{2704/2}}}


= {{{1352}}}