Odpowiedzi

2010-02-01T11:03:55+01:00
(⅕)⁻¹ + (⅕)⁻²=(5/1)¹+(5/1)²=5+25=30

(⅓ - ½)⁻¹=(3/1-2/1)¹=3/1-2/1=3-2=1

(⅓ - ⅕)⁻³ : (⅕ + ⅓)⁻³=(3/1-5/1)³:(5/1=3/1)³=(3-5)³:(5+3)³=
=-2³:8³=-8:512=-8/512

(-6)⁻² × (⅙)⁻⁴=(-1/6)²×(6/1)⁴=1/36×1296/1=1×36=36
2010-02-01T14:25:50+01:00
A) (⅕)⁻¹ + (⅕)⁻²=5¹+5²=5+25=30
b) (⅓ - ½)⁻¹=(²/₆-³/₆)⁻¹=(-¹/₆)₋¹=(-6)¹=-6
c) (⅓ - ⅕)⁻³ : (⅕ + ⅓)⁻³=(⁵/₁₅-³/₁₅)⁻³:(³/₁₅+⁵/₁₅)⁻³=(²/₁₅)⁻³:(⁸/₁₅)⁻³=
(¹⁵/₂)³:(¹⁵/₈)³=(¹⁵/₂*⁸/₁₅)³=4³=64
d) (-6)⁻² × (⅙)⁻⁴=(-⅙)²*6⁴=¹/₃₆*1296=36