Calculus
posted by Brock .
Write the sum using summation notation.
2 + 5 + 8 + 11 + ... + 29
Also, I know that it is going up by 3 units. But I am not sure how to get it into the form below:
example:
15
‡” k +3
k1

Calculus 
Reiny
you know the "formula" has to be 3n 1 to make it start at 2 when n=1
what must be n when 3n1 = 29?
3n = 30
n = 10
so , (don't know how to make summation sign)
summation of 3n1, n=1 at the bottom, 10 at the top of the sign.
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