f(0)=-10,x属于(-1,0) f(-0.5)=-0.25 <- x属于 (-1,-0.5) f(-0.75)>0 x属于(-0.75,-0.5) f(-0.625)>0 x属于(-0.625,-0.5) f(-0.5625)<0 x属于(-0.625,-0.5625) f(-0.594)<0 x属于(-0.625,-0.594) f(-0.610)<0 x属于(-0.625,-0.610) f(-0.6175)<0 x属于(-
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