+(根号2)-1+(根号3)-(根号2) =1-2*(根号3) (-3)的0次方-根号27+(1-根号2的绝对值)+1除根号3加根号2 =1-3√3+√2-1+1/
(-3)的0次方-√27+Ⅰ1-√2Ⅰ+1/(√3+√2)=1-3根号3+根号2-1+根号3-根号2=-2根号3
(-3)的0次方-√27+Ⅰ1-√2Ⅰ+1/(3+√2)√=1 - 3√3 + √2 -1 +√3 - √2=- 2√3