limits sigma notation (1 Viewer)

[gamja]

can you do this:

then

which equals

I'm generally not sure how to solve lim questions involving sums... please help! Thank you!


*ps also noticed that latex on BOS is much cleaner - shoutout to whoever cleaned that up

 

[gamja]

could you expand on how you got from line 2->3? (sigma notation to integral) - it looks like the sum of the rectangle areas (trapezoidal rule?) but I'm stuck how the k and n changed to become in terms of 'x'.