Question

whch element of GP 4,6,18/2 is .....81/4​

Answer 1

Answer:

a(n) = a×r^(n-1)

⇒ 81/4 = 4 × (3/2)^(n-1)

⇒ 81/16 = (3/2)^(n-1)

⇒ (3/2)^4 = (3/2)^(n-1)

⇒ n - 1 = 4

⇒ n = 5

∴ 5th  element  of  the GP  is 81/4

Step-by-step explanation:

Answer 2

Step-by-step explanation:

5th element of the GP is 81/4.