Question

find the sum of 5th term of 81,27,9 _ _ _ _ _ _ _ ​

Answer 1

Answer:

it is in gp then

where a=81

r=1/3

5 th term is

ar^4

81*(1/3)^4

81*1/81

1 is answer

but if u r thinking about sum of 5 terms then

a(1-r^n)/1-r

81(1-1/3^5)/1-1/3

81-81*1/243/2/3

81-1/3/2/3

242/3*3/2

242/2

121

Answer 2

Step-by-step explanation:

hi how are you ........