Question

数学好的帮帮忙

tan60°=根号三 就是 根号3减（根号3减1分之2）加2分之1的-1次幂加1 等于多少

Answer 1

=√3-2(√3+1)/(√3+1)(√3-1)+1/(1/2)+1
=√3-(√3+1)+2+1
=√3-√3-1+2+1
=2