Odpowiedź:
a) ( 1 i 3/4 )²= ( 7/4)²= 7*7/4*4= 49/16= 3 i 1/16
b) ( - 1 i 2/5)³= ( - 7/5)³= -(7/5)*(-7/5)* (-7/5)= -343/125 = - 2 i 93/125
c) ( - 3 i 4/7) ²= (-25/7)²= (-25/7)*(-25/7)= 625/49= 12 i 37/49
d) ( 2 i 1/3)³= (7/3)³= 7/3*7/3*7/3= 343/27= = 12 i 19/27
Szczegółowe wyjaśnienie:
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Odpowiedź:
a) ( 1 i 3/4 )²= ( 7/4)²= 7*7/4*4= 49/16= 3 i 1/16
b) ( - 1 i 2/5)³= ( - 7/5)³= -(7/5)*(-7/5)* (-7/5)= -343/125 = - 2 i 93/125
c) ( - 3 i 4/7) ²= (-25/7)²= (-25/7)*(-25/7)= 625/49= 12 i 37/49
d) ( 2 i 1/3)³= (7/3)³= 7/3*7/3*7/3= 343/27= = 12 i 19/27
Szczegółowe wyjaśnienie: