4^-2,5-(1/16)^1,5+(5/4)^-3,5×(0,8)^-3,5
4^(-2.5) - (1/16)^(1.5) + (5/4) ^(-3.5) x (0.8) ^(- 3.5) = = 4 ^ (- 5/2) - 4 ^( - 2*1.5) + (4/5)^ (3.5) x (4/5)^(-3.5) = = 4^(- 5/2) - 4 ^ (-3) + (4/5 ) ^ (3.5 + (-3.5)) = = 1/√4⁵ - 1/4³ + (4/5)⁰ = = 1/32 - 1/64 + 1 = = 2/64 - 1/64 + 1 = = 1 1/64