Final answer:
The given information s = 15 / 13 and s^{-1} = 8 / 113 is inconsistent, suggesting a contradiction or error in the values provided.
Step-by-step explanation:
The given information is a bit unclear, but I assume you mean:
s ={15} / {13}
and
s^{-1} = 1 / s = 1 / 15/13 = 13 / 15
Then, it's given that s^{-1} = 8 / 113. So, we have:
13 / 15 = 8 / 113
Now, to find s, you can cross-multiply:
13 x 113 = 8 x 15
1469 = 120
This is not a valid equality, and it seems there might be a mistake in the given information.
Please double-check the values provided for s and s^{-1}. If there is additional information or clarification, please provide it so that I can assist you further.