Question

I need help please on how to use sigma notations to write the sum[5(1/8)+3]+[5(2/8)+3]+...+[5(8/8)+3]

Answer 1

\[5\sum_{i = 1}^{8}\left( \frac{ i }{ 8 } + 3 \right)\]

Answer 2

i can answer any questions you have about this

Answer 3

Thanks but what are the step to get to that can you explain

Answer 4

i just looked at it to deduce it. no formulas.

do you know what the numbers above and below the sigma mean?

Answer 5

actually it's wrong

Answer 6

tried to be smart by taking out the 5 sine it multiplies every i/8 term but i forgot about the +3. this is the real answer:\[\sum_{i =1 }^{8}\left( 5\frac{ i }{ 8 } + 3\right)\]

Answer 7

since*

Answer 8

Ah okay thanks I see how you did it now thank you

Answer 9

glad to help ^_^

Answer 10

Could you help me on how to solve this problem

Answer 11

(20 sigma notation I=1) 2i