Question

PLEASE HELP WILL MEDAL!!! (ans. must be correct)

Expand and evaluate the following series, where n = 4 and ai = 2 i2 + 3. What is the sum?

Answer 1

Dude, Dude, I got this. The answer is B 37

Answer 2

do you really?

Answer 3

ai=2i^2+3
first find a1
a1=2+3=5
now a2=2*2^2+3=11
similarly find a3, and a4
then add them up u'll get 72

Answer 4

NO Ineedhelp you are fired

Answer 5

I'm Positive i messed up the last time because i started at 0 instead of 1

Answer 6

You were still wrong.

Answer 7

do u get it?@moemand

Answer 8

I don't know. I will see.

Answer 9

what is the value of a3 can u tell me?