f(x)=x/1+x² 解不等式f(t-1)+f(t)<f(0)
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f(x)=x/1+x² 解不等式f(t-1)+f(t)<f(0)
f(x)=x/1+x² 解不等式f(t-1)+f(t)<f(0)
f(x)=x/1+x² 解不等式f(t-1)+f(t)<f(0)
f(0)=0,f(t-1)+f(t)=(t-1)/(t-1)^2+1 +t/t^2+1
t无实数解