丫丫数学计算02
问题描述:
丫丫数学计算02
(1/2)的-1次方-|-根号2|-1/根号2-1 +(-1-根号2)的平方
答
=1/(1/2)-√2-(√2+1)/(√2+1)(√2-1)+(1+2√2+2)
=2-√2-√2-1+3+2√2
=4