Question

Add Da-b, b-c, c-a 2.ab-bc, bc-ca
ca- ab,​

Answer 1

Answer:

pls vote my mom

Step-by-step explanation:

1)Da-b + b-c + c-a

ans) Da-a-b+b-c+c

     = Da-a +0 (because some terms are (-)+(+)=0)

    = a(D-1) is the answer

2)ab-bc + bc-ca +ca- ab

ans) ab-ab-bc+bc-ca+ca = 0 (because all terms are (-)+(+)=0)

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