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[(1/3) totul la puterea 0 - (1/3) tot la puterea 1- (1/3) tot la puterea 2 -(1/3) tot la putere 3 - (1/3) tot la puterea 4 ]:(1/3) tot la puterea 5
Please !! Dau 20 de puncte !!


Răspuns :

=(1-1/3-1/9-1/27-1/81):1/243
=(81-27-9-3-1) / 81 : 1 / 243
=41 / 81 : 1 /243
=41 /81·243=123
1/3 la puterea 0 = 1
1/3 la puterea 1 = 1/3
1/3 la puterea 2 = 1/9
1/3 la puterea 3 = 1/27
1/3 la puterea 4 = 1/81
1/3 la puterea 5 = 1/243