Answer :

Answer:

[tex]r^{-42}[/tex]

Step-by-step explanation:

(r⁻⁷)⁶ = r⁽⁻⁷⁾ˣ⁶

      = (r)⁻⁴²

Hi1315

Answer:

[tex] {r}^{ - 42} [/tex]

hope this helps you..!

Step-by-step explanation:

[tex] ({r}^{ - 7}) ^{6} \\ = {r}^{ (- 7) \times 6} \\ = {r}^{ - 42} [/tex]

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