Question

Aflati ultima cifra a numarului e=12345la puterea 2010 ×999la puterea 2010×654 la puterea 2010

Answer 1

u(12345 x 999 x 654)²⁰¹⁰ = u(5 x 9 x 4)²⁰¹⁰=u(180²⁰¹⁰)=u(0²⁰¹⁰) = 0 ;