Question

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

Answer 1

what is \(a10\)?

Answer 2

i assume it upto 10 terms

Answer 3

its Geometric series with common ratio(r)=2

r=2nd term/1st term=3rd term/2nd term......=2/1=4/2.......=2

Answer 4

Sum of a_10 terms= a(r^n-1)/((r-1)



where n = number of terms and a= first term

Answer 5

a=1
r=2
n=10