Question

Помогите решить:
(1÷5) ^-2 + 5^-4÷5^-7

Answer 1

$(1 div 5) ^{ - 2} + {5}^{ - 4} div {5}^{ - 7} = {5}^{2} + {5}^{ 3} = {5}^{2} (1 + 5) = 25 times 6 = 150$