-1²×(-3)²-(-½)2003次方×(-2)2002次方÷2/9
问题描述:
-1²×(-3)²-(-½)2003次方×(-2)2002次方÷2/9
答
-1²×(-3)²-(-½)2003次方×(-2)2002次方÷2/9
=-9-(-½)【(-½)×(-2)】²÷2/9
=-9+1/2×9/2
=-27/4
答
-1²×(-3)²-(-½)2003次方×(-2)2002次方÷2/9=-1×9-(-½)×(-½)2002次方×(-2)2002次方÷2/9=-9+½×[-½×(-2)]2002次方×9/2=-9+½×1×9/2=-9+9/4=-27/4...