1.Oblicz najprostszym sposobem.
a)(0,9)⁹*(1¹/₉)⁹₋(1,2)¹⁰:(1⅕)¹⁰
b)(0,7)⁶*(1³/₇)⁶:(0,8)³
a)(0,9)⁹*(1¹/₉)⁹₋(1,2)¹⁰:(1⅕)¹⁰ = (9/10)⁹*(10/9)⁹-(12/10)¹⁰*(5/6)¹⁰ = (1)⁹-(1)¹⁰ = 1-1 = 0
b)(0,7)⁶*(1³/₇)⁶:(0,8)³ = (7/10)⁶*(10/7)⁶:(0,8)³ = 1⁶:(0,8)³ = 1:0,512 = 1,953125
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a)(0,9)⁹*(1¹/₉)⁹₋(1,2)¹⁰:(1⅕)¹⁰ = (9/10)⁹*(10/9)⁹-(12/10)¹⁰*(5/6)¹⁰ = (1)⁹-(1)¹⁰ = 1-1 = 0
b)(0,7)⁶*(1³/₇)⁶:(0,8)³ = (7/10)⁶*(10/7)⁶:(0,8)³ = 1⁶:(0,8)³ = 1:0,512 = 1,953125