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sin(-34π/3)+cos29π/6+tan(-25π/4)

题目详情
sin(-34π/3)+cos29π/6+tan(-25π/4)
▼优质解答
答案和解析
sin(-34π/3)+cos29π/6+tan(-25π/4)
=sin(-12π+2π/3)+cos(5π-π/6)+tan(-6π-π/4)
=sin(2π/3)-cosπ/6-tanπ/4
=根号3/2-根号3/2-1
=-1