计算:(根号5-2)的2009次方乘(根号5+2)的2008次方拜托各位大神
问题描述:
计算:(根号5-2)的2009次方乘(根号5+2)的2008次方拜托各位大神
答
=[(√ 5-2)(√ 5+2)]^2008 x(√ 5-2) =(5-4)^2008 x(√ 5-2) =√ 5-2
计算:(根号5-2)的2009次方乘(根号5+2)的2008次方拜托各位大神
=[(√ 5-2)(√ 5+2)]^2008 x(√ 5-2) =(5-4)^2008 x(√ 5-2) =√ 5-2