a, \(\left(m-2\right)^2=1\)
\(\Rightarrow m-2\in\left\{-1;1\right\}\Rightarrow m\in\left\{1;3\right\}\)
Vậy..............
b, \(\left(2m-1\right)^3=-8\)
\(\Rightarrow2m-1=-2\Rightarrow2m=-1\Rightarrow m=-\dfrac{1}{2}\)
Vậy.................
c, \(\left(m+\dfrac{1}{2}\right)^2=\dfrac{1}{16}\)
\(\Rightarrow m+\dfrac{1}{2}\in\left\{-\dfrac{1}{4};\dfrac{1}{4}\right\}\)
\(\Rightarrow m\in\left\{-\dfrac{3}{4};-\dfrac{1}{4}\right\}\)
Vậy.................
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