问题
选择题
计算82×42001×(-0.25)2005的值等于( )
|
答案
82×42001×(-0.25)2005,
=43×42001×(-0.25)2005,
=42004×(-0.25)2004×(-0.25),
=-0.25×(-4×0.25)2004,
=-
.1 4
故选D.
计算82×42001×(-0.25)2005的值等于( )
|
82×42001×(-0.25)2005,
=43×42001×(-0.25)2005,
=42004×(-0.25)2004×(-0.25),
=-0.25×(-4×0.25)2004,
=-
.1 4
故选D.