(-1/5)的2006次幂*(-5)的2005次幂

问题描述:

(-1/5)的2006次幂*(-5)的2005次幂

=(1/5)^2006*[-(5^2005)]
=-1/5*(1/5)^2005*(5^2005)
=-1/5 *1^2005
=-1/5