计算：sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)
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计算：sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)计算：sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)计算：sin25π/6+
计算：sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)
计算：sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)
计算：sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)
原式=sin(4π+π/6)+cos(6π+π/4)-tan(6π+π/4)-sin(8π+2π/3)
=sinπ/6+cosπ/4-tanπ/4-sin2π/3
=1/2+√2/2-1-√3/2
=（√2-√3-1）/2
=sinπ/6+cosπ/4+tan(-π/4)+sin(-2π/3)
剩下的就是基础的计算了，根号不好打出来的，自己写个结果就行了
计算：sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)
计算,sin25π/6+cos25π/3+tan(-25π/4)
sin25π/6+cos25π/3+tan(-25π/4)
先估计结果的符号,再进行计算sin25π/6+cos25π/3+tan（- 25π/4）
sin25π/6 + cos25π/3 + tan(-25π/4)这题怎么算?
求sin25π/6+cos25π/3+tan（-25π/4）的值?
一道很基础的三角函数化简题sin25π/6+cos25π/3+tan25π/4 化简：
sin25π/6+cos25π/3+tan25π/4等于多少?
计算sin25∏/6+cos25∏/3+tan(-25∏/4)急用!
sin25π/4+cos25π/3+tan(-25π/4)=
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