Question

daca a×c = 155 si b=6 calculeaza ( a×c)×c, a×(b×c),b×(c×a),b × (c×a,)

Answer 1

a x c = 155;  b = 6  → Proprietatile inmultirii 

( a x c ) x b = 155 x 6 = 930

a x ( b x c) = b x ( a x c) = 6 x 155 = 930 
                  → aplic asociativitatea inmultirii !

b x ( c x a) =b x ( a x c) =  6 x 155 = 930 
              → aplic comutativitatea inmultirii

Answer 2

( a x c ) x b = 155 x 6 = 930
a x ( b x c) = b x ( a x c) = 6 x 155 = 930 
             
b x ( c x a) =b x ( a x c) =  6 x 155 = 930 
coroana?