计算sin25/6π+tan9/4π-cos19/3π
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/23 02:53:39
计算sin25/6π+tan9/4π-cos19/3π计算sin25/6π+tan9/4π-cos19/3π计算sin25/6π+tan9/4π-cos19/3π∵sin(25/6)π=sin(π/6
计算sin25/6π+tan9/4π-cos19/3π
计算sin25/6π+tan9/4π-cos19/3π
计算sin25/6π+tan9/4π-cos19/3π
∵sin(25/6)π=sin(π/6)=1/2
tan(9/4)π=tan(π/4)=1
cos(19/3)π=cos(π/3)=1/2
∴原式=(1/2)+1-(1/2)=1
计算sin25/6π+tan9/4π-cos19/3π
计算sin25/6π+tan9/4π-cos19/3π
sin25π/6等于?
tan9π/8
1.cosπ/3-tan9π/4+3/4tan²(-2π+π/6)+sin25π/6-cos²13π/6+sin17π/2 2.a,b,c为正数3的a次方=4的b次方=6的c次方证:2/a+1/b=2/c 3.sinx+cos+x=1/5(0<x<π)求tanx
计算:sin25π/6+cos25π/4+tan(-25π/4)+sin(-26π/3)
计算,sin25π/6+cos25π/3+tan(-25π/4)
tan9分之π+tan9分之2π+根号3乘tan9分之π乘tan9分之2π的值
解答(1)cos(-11π/6) (2)tan9π/4 (3)sin1140°
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)
求下列各三角函数值:(1)cos(-11π/6) (2)tan9π/4 (3)sin1140°
sin25π/3 结果是多少.
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?
sin25/6π+cos4/3π等于多少?