12,5 = b₉ = b₁ * q⁸
b₅ = b₁*q⁴ = √(b₁² * q⁸) = √b₁ * √b₉ = √b₁√12,5 = √12,5b₁
5 = √12,5b₁
b₁ = 25/12,5 = 2
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
12,5 = b₉ = b₁ * q⁸
b₅ = b₁*q⁴ = √(b₁² * q⁸) = √b₁ * √b₉ = √b₁√12,5 = √12,5b₁
5 = √12,5b₁
b₁ = 25/12,5 = 2