Question

Which term of the series 1,2,4.....is2048

Answer 1

Step-by-step explanation:

the series is in g.p.

first term a = 1

common ratio r=2

therefore,

ar(n-1)=2048

1*2(n-1)=2048

2^(n-1)=2048

2^(n-1)=2^11

n-1=11

n=11+1

2048 is the 12 term of the series