answer the questions,,,,,,
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2
Answer:
All of them gets cancelled ⟵(o_O) ⟵(o_O)
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0
Answer:
pq -qr+qr-rs+rs-pq
=pq-pq +rs-rs+qr-qr
after canceling pq,-pq ,rs,-rs,qr,-qr
=0
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