A12 means that the exponent of an arithmetic function is 12 TRUE or FALSE
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Hey,
If you meant that
than 
![= \sqrt[4]{111^{5}}](https://tex.z-dn.net/?f=%3D%20%20%5Csqrt%5B4%5D%7B111%5E%7B5%7D%7D%20%20)
but you can't find the exact number.
Hope this helps :) and don't forget to choose the brainliest please :)
If you meant that
Hope this helps :) and don't forget to choose the brainliest please :)