Question

Aflați ultima cifră!Vă rog!Este urgent!

Answer 1

Răspuns:

e)6

f)6

g)1

Explicație pas cu pas:

e) 56= 4×14 => U(68^56)=U(68^4)=U(8^4)=6

f) 37=4×9+1 => U(89^37)=U(89^1)=U(9^1)=9

38=4×9+2=> U(88^38)=U(88^2)=U(8^2)=4

39=4×9+3=> U(87^39)=U(87^3)=U(7^3)=3

U(89^37+ 88^38+87^39)= U(9+4+3)=U(16)=6

g)U(71^10000001)= U(1^10000001)= 1