Question

Engineering question involving complex Einstein Notation.

QUESTION BELOW

Answer 1

\[y = \sum_{i=1}^{3} c _{i}x ^{1}+c _{2}x ^{2}+c _{3}x ^{3}\]

Answer 2

what to do with it?

Answer 3

This is reduced by the convention to:

\[y=c _{i}x ^{}\]

Didn't you learn how to reduce this in year 3?

Answer 4

Thanks @Compassionate

Answer 5

Actually it's: \[y=c _{i}x ^{i}\] That's how you work it.

Answer 6

Hmm... ?

Answer 7

No.