Question

Aflați ultima cifra a nr e=12345la puterea 2010.999 la puterea 2010.654la puterea 2010

Answer 1

a)u(e)=$u( 12345^{2010} )$
u(e)=$u(12345^{2})$
u(e)=u(152399025 )
u(e)=5

b) u(e)=$u( 999^{2010} )$
u(e)=$u( 999^{2} )$
u(e)=u(998001)
u(e)=1

c) u(e)=$u(654^{2010} )$
u(e)=$u( 654^{2} )$
u(e)=u(427716)
u(e)=6

2010:4=502 rest 2


Sper ca te-am ajutat ! :)