bodog888:计算-2^2+(1-tan60

来源:百度文库 编辑:高校问答 时间:2024/05/03 02:09:50
计算-2^2+(1-tan60)+(-1/2)^-2+64开三次方+(1-sqr(3))-2/ (sqr(3)-1)

-2^2+(1-tan60)+(-1/2)^-2+64开三次方+(1-sqr(3))-2/ (sqr(3)-1)
=-4+(1-√3)-4+4+(1-√3)-(√3+1)
=-4+ 2(1-√3)-(√3+1)
=-3-3√3