Question

rápido por favor !!!!

Answer 1

1) (1, 2, 4, ...)

q = 4/2 ---- q = 2

a₁ = 1

an = a₁ . q ⁿ⁻¹

a₁₀ = 1 . 2 ¹⁰ ⁻ ¹   ----- a₁₀ = 2⁹ --- a₁₀ = 512



2) (1, 3, 9, ...)

a₁ = 1

q = 9/3 --- 3

an = a₁ . q ⁿ ⁻ ¹ ------- a₈ = 1 . 3 ⁸ ⁻ ¹ ---- a₈ = 3⁷ ---- a₈ = 2187



3) a₇ = 32           q = 2

an = a₁ . q ⁿ ⁻ ¹ ---- a₇ = a₁ . 2 ⁷ ⁻ ¹ ---- 32 = a₁ . 2⁶ ---- 32 = a₁ . 64

a₁ = 32/64 ------ a₁ = 1/2 ou a₁ = 2 ⁻¹