问题
填空题
(-0.4)2008×(-2
|
答案
(-0.4)2008×(-2
)20091 2
=(-
)2008×(-2 5
)20095 2
=(-
)2008×(-2 5
)2008×(-5 2
)5 2
=[(-
)×(-2 5
)]2008×(-5 2
)5 2
=-
.5 2
(-0.4)2008×(-2
|
(-0.4)2008×(-2
)20091 2
=(-
)2008×(-2 5
)20095 2
=(-
)2008×(-2 5
)2008×(-5 2
)5 2
=[(-
)×(-2 5
)]2008×(-5 2
)5 2
=-
.5 2