Question

a×c)=155si b=6,aflati
(a×b)×c
a×(b×c)
c×(a×b)
b×(c×a)

Answer 1

(a×b)×c=(axc)xb=155x6=930
a×(b×c)=(axc)xb=155x6=930
(axc)xb =155x6=93
c×(a×b)=(cxa)xb=155x6=930
b×(c×a)=6x155=930

toate dau lafel deoarece inmultirea este comutativa

Answer 2

(a×b)×c=(axc)xb=155x6=930
ax(bxc)=(axc)xb=155x6=930
cx(axb)=(axc)xb=155x6=930
bx(cxa)=(axc)xb=155x6=930
poate te miri sa vezi raspunsurile dar am folosit asociativitatea