1.6*0.25/4 递等式怎么算
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1.6*0.25/4 递等式怎么算
1.6*0.25/4 递等式怎么算
1.6*0.25/4 递等式怎么算
1.6*0.25/4
=0.4/4
=0.1
x<3则x<5
所以3-x>0,x-5<0
所以原式=(3-x)-(5-x)
=3-x-5+x
=-22x²-5x+2x-5=0
2x²-3x-5=0
(2x-5)(x+1)=0
x=5/2,x=-1
原式
=1.6*1/16
=0.1