Question

evaluate the series 1+2+4+8+....+a10

Answer 1

1(2^9 - 1)/2 -1

Answer 2

S(n) = a1 (r^n - 1)/(r-1)

Answer 3

got it?

Answer 4

What do you mean +a10?

Answer 5

\[2^{10}\] or
\[a^{10}\]? if it is
\[1+2+4+8+...+2^{10}\] answer is
\[2^{11}-1\]

Answer 6

i think its the tenth term

Answer 7

well if it is the tenth term answer would be
\[2^{10}-1\] yes?

Answer 8

ugh idk.. this is SO hard to me.!