所屬科目：研究所、轉學考(插大)-微積分
10% (a)X2= 4.
10% (b) = 0.
10% (a) Show thatloge x =.
10% (b) Show that ex = ex.
10% (a) Show that if f(x)>0, then f(x) is concave upward.
10% (b) Show that if f(x)<0, then f(x) is concave downward.
10% (a) Find f(x).
10% (a).
10% (b).
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X2= 4. 
= 0. 
loge x =
.
ex = ex.
f(x)>0, then f(x) is concave upward.
f(x)<0, then f(x) is concave downward.
f(x).
.
.