(-2)2001+(-2)2002等于( ) A.-22001 B.-22002 C.22001 D.-2
问题描述:
(-2)2001+(-2)2002等于( )
A. -22001
B. -22002
C. 22001
D. -2
答
(-2)2001+(-2)2002,
=(-2)2001(1-2),
=(-2)2001×(-1),
=22001.
故选C.