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Aflati N daca N=100+2×(1+2+3+.........+99)

Rapiddd

Va rogggg


Răspuns :

N=100+2×(1+2+3+...+99)=

=100+2×99×100:2=

=100+99×100=

=100+9900=

=10000

Răspuns:

N=100+2*((1+99)*99:2)=100+2*(100*99:2)=100+2*4950=100+9900=10000