问题
填空题
化简:(7-5
|
答案
原式=(7-5
)2000•(-7-52
)2000(-7-52
)2
=[(-5
+7)(-52
-7)]2000(-7-52
)2
=(-1)2000(-7-5
)2
=-7-5
.2
化简:(7-5
|
原式=(7-5
)2000•(-7-52
)2000(-7-52
)2
=[(-5
+7)(-52
-7)]2000(-7-52
)2
=(-1)2000(-7-5
)2
=-7-5
.2