Ответ: b₇=1/9.
Объяснение:
b₁=81 q=1/3 b₇=?
bn=b₁*q⁽ⁿ⁻¹⁾
b₇=b₁q⁽⁷⁻¹⁾=81*(1/3)⁶=81/3⁶=3⁴/3⁶=3⁽⁴⁻⁶⁾=3⁻²=1/9.
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
Ответ: b₇=1/9.
Объяснение:
b₁=81 q=1/3 b₇=?
bn=b₁*q⁽ⁿ⁻¹⁾
b₇=b₁q⁽⁷⁻¹⁾=81*(1/3)⁶=81/3⁶=3⁴/3⁶=3⁽⁴⁻⁶⁾=3⁻²=1/9.