Question

2,6,18 sum of series upto 7th term A)215 B)210 C)315 D310​

Answer 1

Answer:

2186

Step-by-step explanation:

a=2

r=3

n= 7

sum of g.p = a(r^n - 1)/(r -1)

2(3^7 - 1)/3-1

2(2187-1)/2

2186