Răspuns :
Răspuns:
B=(1/9+1/5:3/5)³:(7/9)³=(1/9+1/5*5/3)³:(7/9)³=(1/9+1/3)³:(7/9)³=(4/9)³:(7/9)³=4³/9³*9³/7³=4³/7³
B=64/343
2/6*B=2/6*64/343=1/3*64/343=64/1029
Explicație pas cu pas:
Răspuns:
B=(1/9+1/5:3/5)³:(7/9)³=(1/9+1/5*5/3)³:(7/9)³=(1/9+1/3)³:(7/9)³=(4/9)³:(7/9)³=4³/9³*9³/7³=4³/7³
B=64/343
2/6*B=2/6*64/343=1/3*64/343=64/1029
Explicație pas cu pas: