Question

Обчислити: а) (2⋅3^20-5⋅3^19)/9^9 ; б)

Answer 1

Ответ: (2 ⋅ 3²⁰ - 5 ⋅ 3¹⁹)/9⁹ = 3.

Пошаговое объяснение:

(2 ⋅ 3²⁰ - 5 ⋅ 3¹⁹)/9⁹ = 3¹⁹(2 ⋅ 3 - 5)/(3²)⁹ = 3¹⁹ ⋅ (6 - 5)/3¹⁸ = 3 ⋅ 1 = 3.