注：sqrt()是根号的意思i) 当0f(t)=0.5*t*sqrt(3)*t=sqrt(3)/2*t^2ii) 当1f(t)=sqrt(3)/4*2^2-0.5*(2-t)*sqrt(3)*(2-t)=sqrt(3)-sqrt(3)/2*(2-t)^2=2*sqrt(3)*t-sqrt(3)/2*t^2-sqrt(3)iii) 当t>2时，f(t)=sqrt(3)/4*2^2=sqrt(3)综上所述，f(t)是分段函数___占位____sqrt(3)/2*t^2 (0f(t)=｛ 2*sqrt(3)*t-sqrt(3)/2*t^2-sqrt(3) (1___占位____sqrt(3) (t>2)
