Question

Find the sum of the first 8 terms of the series
2,6, 18, 54............​

Answer 1

As the relationship between these four numbers is,

2 + 4(1) = 6

6 + 4(3) = 18 = 2 + 4(1) + 4(3)

18 + 4(9) = 54 = 2 + 4(1) + 4(3) + 4(9)

54 + 4(27) = 162 and so on

162 + 4(81) = 486

486 + 4(243) = 1458

1458 + 4( 729) = 4374

Hence,

8th term would be,

2 + 4(1) + 4(3) + 4(9) + 4(27) + 4(81) + 4(243) + 4(729) = 4374.

Make my answer as brainlist answer

Answer 2

Answer:

Answer is the 162

Step-by-step explanation:

bcz 2 ×.3 = 6

6 × 3 = 18

18 × 3 = 54

54 × 3 = 162