(1/3)^[log(1/2)^(x^2-3x+1)]
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(1/3)^[log(1/2)^(x^2-3x+1)](1/3)^[log(1/2)^(x^2-3x+1)](1/3)^[log(1/2)^(x^2-3x+1)]SGSFGHG,1=(1/3)^0,而
(1/3)^[log(1/2)^(x^2-3x+1)]
(1/3)^[log(1/2)^(x^2-3x+1)]
(1/3)^[log(1/2)^(x^2-3x+1)]
SGSFGHG ,
1=(1/3)^0,而且函数y=(1/3)^x是单调减的.
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