Question

Write 1/6 + 1/7 +1/8 +1/9 +1/10 in sigma notation.

Answer 1

well, we can start with n = 6 and end with n = 10 to make things easy

Answer 2

So far, I've got the following -

Answer 3

if n = 1, how do we write 1/6 in terms of n?

Answer 4

I'm not actually sure. So I guess n = 1/6

Answer 5

not quite

Answer 6

let's say we want to write the fraction 1/6 without using 6.

Answer 7

instead, we can only use n, which equals 1

Answer 8

how can we still write 1/6, without using 6?

Answer 9

need a hint?

Answer 10

Yes please.

Answer 11

6 = n + 5

Answer 12

know where to go from there?

Answer 13

Not really, this part was never my strong suit.

Answer 14

we can replace "6" with "n + 5"

Answer 15

so 1/6 becomes 1/(n+5)

Answer 16

and that's your answer

Answer 17

Ohhhh okay.