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D( g )
g = 0
g = 0
g = 0
g in (-oo:0) U (0:+oo)
45 = 34/g+43 // - 34/g+43
45-(34/g)-43 = 0
45-34*g^-1-43 = 0
-34*g^-1 = -2 // : -34
g^-1 = 1/17
-1 < 0
1/(g^1) = 1/17 // * g^1
1 = 1/17*g^1 // : 1/17
17 = g^1
g = 17
g = 17
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