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aratati ca n =(5+10+15+..........+200)÷41 se imaprte exact la 25​

Răspuns :

Răspuns:

n=(5+10+15+.....+200)÷41=

n=5× (1+2+3+......+40)÷41=

n=5×(40×41):2:41=

n=5×20×41:41=

n=100×41:41=

n=100

100:25=4,rest 0 adica se imparte exact