- #1
fluffertoes
- 16
- 0
find the sum of this infinite geometric series:
1 - √2 + 2 - 2√2 + ...
a.) .414
b.) -2.414
c.) series diverges
d.) 2
I found that the common difference is 2, so I calculated this:
S_{∞}= -.414/-1
s_{∞}= .414
So i got that the answer is A, but will you check this?
1 - √2 + 2 - 2√2 + ...
a.) .414
b.) -2.414
c.) series diverges
d.) 2
I found that the common difference is 2, so I calculated this:
S_{∞}= -.414/-1
s_{∞}= .414
So i got that the answer is A, but will you check this?