Oblicz:
a) (-6)^-2 * (1/6)^-4
b) (2^-5 * 2^-3 / 2^-7)^-2
c) 3^-6 * (3^-2 :3)^-1 / 3^4 : (3^2 * 3^6)
legenda:
" ^ " - do potęgi
" / " - podzielić
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a]
(-6)⁻²×(⅙)⁻⁴=(-6)⁻²×(6⁻¹)⁻⁴=(-6)⁻²×6⁴=¹/₃₆×1296=36
b]
(2⁻⁵×2⁻³:2⁻⁷)⁻²=(2⁻¹)⁻²=2²=4
c]
3⁻⁶(3⁻²:3)⁻¹/3⁴:(3²×3⁶)=
3⁻⁶×(3⁻³)⁻¹/3⁴:3⁸=
3⁻⁶×3³/3⁻⁴=3⁻³/3⁻⁴=3¹=3