Răspunsuri

2014-11-01T10:27:54+02:00
/-supra ; *-inmultire ; ^-putere
a) [10434*(10434+1) / 2]:10435=[10434*10435/2]:10435=5217*10435:10435=5217
c) [300*(300+1)/2]: 903= [300*301/2]:903= 45150:903=50

b si d, nu le stiu, sorry.
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