-1²×(-3)²-(-½)2003次方×(-2)2002次方÷2/9

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-1²×(-3)²-(-½)2003次方×(-2)2002次方÷2/9
-1²×(-3)²-(-½)2003次方×(-2)2002次方÷2/9

-1²×(-3)²-(-½)2003次方×(-2)2002次方÷2/9

-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

-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