Which of the following are GP? If they are in GP. Write three more terms?

4, 8, 16,….

Here first term is (a) = 4

r₁ =

r₂ =

Common ratios are equal so the given series is in GP.

a₄ = a r³ = 4×2³ = 4×8 = 32

a₅ = a r⁴ = 4×2⁴ = 4×16 = 64

a₆ = a r⁵ = 4×2⁵ = 4×32 = 128