Simplify [7-¹ + (3/3)-¹]-¹ – InterviewSolution

1.

Simplify [7-¹ + (3/3)-¹]-¹

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Step-by-step explanation:

1/3

7}^{ - 1} \TIMES {3}^{ - 1} = 21}^{ - 1}

1/21 × 7^1 =

{3}^{ - 1}3

−1

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