Write the sum using summation notation, assuming the suggested pattern continues.
-9 - 3 + 3 + 9 + + 81

ANSWER

EXPLANATION

The given series

This is an arithmetic series with a common difference of

The first term of the series is:

The general term is given by:

The last term is 81

We can use this to determine the number of terms in the series.

The summation notation is:

i = 2 / - 5

step-by-step explanation:

evaluation of ( 2 - 4 ) ( p + q ) when p = 2 and q = 5 i, by putting values of p and q,