(i) (2-1 - 3-1)-° + (6-1 - 8-1)-1
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Answer:
Step-by-step explanation:
(2-1 - 3-1)-° + (6-1 - 8-1)-1
=1 +(6-1-8-1)-1
=1+(-4)-1
=1+1
=2
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