Вычислить: 1) (2/3)⁻³ - 4⁻² 2)(-0,1)⁻³ - (-0,2)⁻³ 3)-(-0,1)⁻⁴ + (-0,2)²

a^-m = 1 / a^m1) ( 2/3 )⁻³ - 4⁻² = 1/( 2/3 )³ - 1/4² = 1/( 8/27 ) - 1/16 = 27/8 - 1/16 = ( 54 - 1 )/16 = 53/16 = 3.3125;2) ( -0.1 )⁻³ - ( -0.2 )⁻³ = 1/( -0.1 )³ - 1/( -0.2 )³ = 1/( -0.001 ) - 1/( -0.008 ) =( -1000) - ( -125) = -1000 + 125 = -875;3) -( -0.1 )⁻⁴ + ( -0.2 )² = -( 1/( -0.1)⁴) + 0.04 = -(1/0.0001) + 0.04 = -10000 + 0.04 = -9999.96.