$$\frac { 3 m ^ { 0 } - 1 } { m ^ { 0 } + 1 }$$
$1$
$$\frac{3\times 1-1}{m^{0}+1}$$
$$\frac{3-1}{m^{0}+1}$$
$$\frac{2}{m^{0}+1}$$
$$\frac{2}{1+1}$$
$$\frac{2}{2}$$
$$1$$
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