4.00 3.50 3.00 2.50 1.50 1.00 0.50 1.00 0.50 0.00 0.50 1.00 2.00 xg is the maximum in[-1, 2 1.85+E f(xg)is slightly greater th an f(1.85)=3.85 2021/1/30 EIE426-AICV2021/1/30 EIE426-AICV 12 ( )is slighytly greater th an (1.85) 3.85. 1.85 is the maximum in [-1,2]. 1 9 1 9 1 9 1 9 = = + f x f x x 