10.3. Oblicz:
a) (0,7)⁵ · (1 3\7)⁵ - (1,4)³ : (0,7)³ =
b) (3\4)² · (8\9)² + (8\9)³ : (1 1\3)³=
c) (1 1\9)⁴ · (0,9)⁴ - (1,6)³ : (4\5)³=
d) ( 1\2)³ · (2\3)³ - (3\4) ⁻ ³ · 4 ⁻³ =
Prosze rozwiązcie to dobrze błagam ;( daje oczywiscie naj ;* aha np 3\4 taak jak pisałam to zasze sa ułamki zwykłe bo nie ma tutaj wszystkich :(
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a.=(7/10 x 10/7)⁵-(14/10:7/10)³=1-(14/10 x 10/7)³=1-2³=1-8=-7
b.=(3/4 x 8/9)²+(8/9:4/3)³=(2/3)²+(8/9 x 3/4)³=4/9+8/27=12/27+8/27=20/27
c.=(10/9 x 9/10)⁴-(8/5 : 4/5)³=1- (8/5 x 5/4)³=1-8=-7
d.=(1/2 x 2/3)³ - (3/4 x 4)⁻³= 1/27- (3)⁻³=1/27- 1/27=0