same question almost i think

Mathematics
Tutor: None Selected Time limit: 1 Day

Find s11 for 1+2+4+8

May 7th, 2015

this is geometric sequence

b1=1, q=2

S11=[b1*(1-q^n)]/(1-q)=[1*(1-2^11)]/(1-2)=(-2047)/(-1)=2047

May 7th, 2015

Did you know? You can earn $20 for every friend you invite to Studypool!
Click here to
Refer a Friend
...
May 7th, 2015
...
May 7th, 2015
Dec 11th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer