Объяснение:
= (3²ⁿ + 3ⁿ⁻¹)3ⁿ⁻¹ + 2·3ⁿ⁻¹ = 3³ⁿ⁻¹ + 3²ⁿ⁻² + 2·3ⁿ⁻¹
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Объяснение:
= (3²ⁿ + 3ⁿ⁻¹)3ⁿ⁻¹ + 2·3ⁿ⁻¹ = 3³ⁿ⁻¹ + 3²ⁿ⁻² + 2·3ⁿ⁻¹