1. Вычислите: a) 5⁴-4³; б) (-6)³ + (-1)¹⁰; в) 9 ⋅ (2/9)³

а) 5⁴ - 4³ = 625 - 64 = 561

б) (-6)³ + (-1)¹⁰ = -216 + 1 = -215

в) 9 ⋅ (2/9)³ = 9 ⋅ (8/729) = 9 ⋅ (8/(9⋅81)) = 8/81 = 8/81