Question

Expeess the series 1+4+9+16 using sigma notation

Answer 1

Ahhh this is a fun one! Any ideas? Give it your best shot and guess and I'll help you understand. I remember when I first saw sigma notation I didn't understand it either, but through guessing I can understand where you need help in understanding.

Answer 2

want a hint?

Answer 3

Yes

Answer 4

Not even gonna try? :(

Answer 5

$$\Huge1^2 = 1$$$$\Huge2^2 = 4$$$$\Huge3^2 = 9$$$$\Huge4^2 =16$$

Answer 6

Do i add 1+4+9+16 by any chance?

Sorry i dont remember how to do this

Answer 7

yes

Answer 8

Sigma notation is a shorthand way of writing: n + (n+1) + (n+2) + ...

Answer 9

\[\sum_{1}^{4}\]

Answer 10

"Sigma" means "sum"

Answer 11

Oh ok.