Posted by Geoff on Sunday, December 19, 2010 at 1:27pm.
express [3/7]+[4/8]+[5/9]+[6/10] in sigma notion.

maths  Damon, Sunday, December 19, 2010 at 1:36pm
sigma from x = 3 to x = 6 of [ x/(x+4) ]

maths  Geoff, Sunday, December 19, 2010 at 1:40pm
how did you find that equation ? it there a general formula for that ?

maths  Damon, Sunday, December 19, 2010 at 1:42pm
Nope, just look at it
on top
3,4,5, 6
=2, 3+1 etc
on bottom
7,8,9,10
= 7, 7+1 etc
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