Question

Medal Given
∑[(k-1),5,(k-8)^3]
Expand The Series

Answer 1

@Loser66 HELPPPPPP

Answer 2

don't understand the notation, use draw box below to write it,please

Answer 3

\[\sum_{k-1}^{5}\rightarrow(k-8)^3\]

Answer 4

Expand it.

Answer 5

what does \(\rightarrow \) mean?

Answer 6

i couldnt figure out how to put that on the side of sigma. but its just supposed to be on the side

Answer 7

ok, so far, we have 5 terms, 1,2,3,4,5
k =1, (k-8) =?

Answer 8

-7

Answer 9

(-7)^3=?

Answer 10

343

Answer 11

-343 not 343, ok?

Answer 12

okay

Answer 13

and then what?

Answer 14

so, \(k_1=-343\)
now, k =2; (k-8)=?

Answer 15

-6\

Answer 16

-6

Answer 17

(-6)^3=?

Answer 18

-216?

Answer 19

yep, \(k_2 = -216\) so, keep up \(k_3,k_4,k_5\) then add them together, that's it

Answer 20

i think i got it thanks!

Answer 21

hehe,... glad to hear. Didn't think that how easy it is, right?