实数指数幂的运算法则shishu zhishumi de yunsuanfaze

❶a^m·aⁿ＝a^m+n(a>0,m,n为实数);

❷(am)ⁿ＝a^nm(a>0,m,n为实数);

❸(ab)ⁿ＝aⁿ·bⁿ(a>0,b>0,n为实数).