Question

verify the property (a×b) ×c =a×(b×c) if
a=5 , b= -8, c= -7​

Answer 1

Answer:

Question=Verify the property (a×b) ×c =a×(b×c) if

a=5 , b= -8, c= -7​

Step-by-step explanation:

Now we have values so what we need to do is simply put the values in the given identity....

LHS=                                                                           RHS=

=[5*(-8)]*(-7)                                                                    =  (5)*[(-8)*(-7)]      

=[-40]*(-7)                                                                        =(5)*(56)  

=280                       **(-ve * -ve gives +ve value)**      =280

We know what to prove ie LHS=RHS

∴We have 280=280

hence Lhs=Rhs proved

Hence (a×b) ×c =a×(b×c) also proved..

Thank you ...........