更新時(shí)間:2024-01-12 14:05:45作者:貝語(yǔ)網(wǎng)校
式子(-1)2005+(-1)2006的值是
A.-1
B.1
C.-2
D.0
D
根據(jù)-1的奇數(shù)次冪是-1,-1的偶數(shù)次冪是1進(jìn)行計(jì)算.
解答:(-1)2005+(-1)2006=-1+1=0.
故選D.
點(diǎn)評(píng):此題的關(guān)鍵是明確-1的奇數(shù)次冪是-1,-1的偶數(shù)次冪是1.
2024-01-12 14:05
2024-01-12 14:05