y = log (-x^2+4x-8)/(-x+1)
berbasis 3-x
(-x^2+4x-8)/(-x+1)>0
(x^2-4x+8)/(x-1)>0. //(x^2-4x+8);
////D<0 nilai
///selalu positf
(x-1)>0.
x>1. ..... (1)
3-x>0
x<3. ..... (2)
dari (1) (2)
1<x<3
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y = log (-x^2+4x-8)/(-x+1)
berbasis 3-x
(-x^2+4x-8)/(-x+1)>0
(x^2-4x+8)/(x-1)>0. //(x^2-4x+8);
////D<0 nilai
///selalu positf
(x-1)>0.
x>1. ..... (1)
3-x>0
x<3. ..... (2)
dari (1) (2)
1<x<3