问题
填空题
计算:①(a2)3=______;②22009×(-0.5)2009=______.
答案
①(a2)3=a6;
②22009×(-0.5)2009,
=(-2×0.5)2009,
=(-1)2009,
=-1.
计算:①(a2)3=______;②22009×(-0.5)2009=______.
①(a2)3=a6;
②22009×(-0.5)2009,
=(-2×0.5)2009,
=(-1)2009,
=-1.