已知,則a的值是:()
A.1 B.-1 C.1/2 D.0
廣義積分,則計(jì)算后是下列中哪個(gè)結(jié)果()?
A.I=1 B.I=-1 C.I=1/2 D.此廣義積分發(fā)散
廣義積分的值是:()
A.1 B.-1 C.1/2 D.廣義積分發(fā)散