3. Add the following
@ab-bc, bc-a, ca- ab
(m) 2p?q? – 3pq +45 + 7pq - 3pq?
(i) a-bab, b-c+bc, c-a + ac
(iv) * mm 1, +1,
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Answer:
Ab-bc,bc-a,ca-ab
- ab-bc+bc-a+ca-ab
ab-ab -bc+bc -a +ca
-a+ ca
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