а) 3/16
б) bₙ = 3 · (1/2)ⁿ⁻¹
Объяснение:
b₁ = 3
b₂ = 3/2
q = b₂ / b₁ = (3/2) / 3 = 1/2
bₙ = b₁ · qⁿ⁻¹
а) b₅ = b₁ · q⁴ = 3 · (1/2)⁴ = 3/16
а) 3/16
б) bₙ = 3 · (1/2)ⁿ⁻¹
Объяснение:
b₁ = 3
b₂ = 3/2
q = b₂ / b₁ = (3/2) / 3 = 1/2
bₙ = b₁ · qⁿ⁻¹
а) b₅ = b₁ · q⁴ = 3 · (1/2)⁴ = 3/16
б) bₙ = 3 · (1/2)ⁿ⁻¹