(根号2+1)^2013(根号2-1)^2012
问题描述:
(根号2+1)^2013(根号2-1)^2012
答
最后=根号2+1
(根号2+1)^2013(根号2-1)^2012
=【(根号2-1)*(根号2+1)】^2012*(根号2+1)
平方差公式得=1^2012*(根号2+1)
=根号2+1
答
原式
=(√2+1)^2012x(√2+1)x(√2-1)^2012
=(√2+1)^2012x(√2-1)^2012x(√2+1)
=[(√2+1)(√2-1)]^2012x(√2+1)
=(2-1)^2012x(√2+1)
=1x(√2+1)
=√2+1