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> 下列各式中,一定成立的有()①(a-3)0=1(a=3)②(a-3)0=1(a≠0)③(a-3)0=1(a<3)④(a-3)0=1(a≠3)A.①和②B.②和③C.③和④D.①和④-数学
下列各式中,一定成立的有()①(a-3)0=1(a=3)②(a-3)0=1(a≠0)③(a-3)0=1(a<3)④(a-3)0=1(a≠3)A.①和②B.②和③C.③和④D.①和④-数学
题目简介
下列各式中,一定成立的有()①(a-3)0=1(a=3)②(a-3)0=1(a≠0)③(a-3)0=1(a<3)④(a-3)0=1(a≠3)A.①和②B.②和③C.③和④D.①和④-数学
题目详情
下列各式中,一定成立的有( )
①(a-3)
0
=1(a=3)
②(a-3)
0
=1(a≠0)
③(a-3)
0
=1(a<3)
④(a-3)
0
=1(a≠3)
A.①和②
B.②和③
C.③和④
D.①和④
题型:单选题
难度:中档
来源:不详
答案
(a-3)0=1中应该是a≠3,故③④成立,①②不成立.
故选:C.
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题目简介
下列各式中,一定成立的有()①(a-3)0=1(a=3)②(a-3)0=1(a≠0)③(a-3)0=1(a<3)④(a-3)0=1(a≠3)A.①和②B.②和③C.③和④D.①和④-数学
题目详情
①(a-3)0=1(a=3)
②(a-3)0=1(a≠0)
③(a-3)0=1(a<3)
④(a-3)0=1(a≠3)
答案
故选:C.