cosπ/6+根号3sinπ/6=?
来源：学生作业帮助网 编辑：六六作业网 时间：2024/05/11 19:40:46
cosπ/6+根号3sinπ/6=?cosπ/6+根号3sinπ/6=?cosπ/6+根号3sinπ/6=?√3；cosπ/6=√3/2,sinπ/6=1/2所以cosπ/6+√3sinπ/6=√3/
cosπ/6+根号3sinπ/6=?
cosπ/6+根号3sinπ/6=?
cosπ/6+根号3sinπ/6=?
√3；cosπ/6=√3/2,sinπ/6=1/2所以cosπ/6+√3sinπ/6=√3/2+√3/2=√3
希望对你有帮助
cosπ/6+根号3sinπ/6=?
由cos(a+b)=cos a cos b-sin a sin b cos(a-b)=cos a cos b+sin a sin b解题设a为锐角,证：1、2分之根3乘cos a + 2分之1乘sin a=cos(6分之π-a)2、cos a-sin a=根号2cos(4分之π+a)
求证 cos（A）+ 根号3sin(A)=2sin(π/6+A)
求证:(根号3)*sinα+cosα=2sin(α+π/6)
根号3sin(π/6-a)-cos(π/6-a)
设角a=-35π/6,则2sin(π+α)cos(π-α)-cos(π+α)/ 1+sin^2α+sin(π-α)-cos^2(π+α)sina=sin(-35π/6)=sin(-6π+π/6)=1/2 cosα=根号3/22sin(π＋α)cos(π-α)-cos(π+α)/ [1+sin^2α+sin(π-α)-cos^2(π+α)]=2（-sinα)(-cosα）+cosα/[1+sin²
1.化简根号2cos x - 根号6sin x2.已知sin(α-β)cosα-cos(β-α)sinα=3/5,β是第三象限角,求sin(β+5π/4)的值.3.化简sin(α-β)sin(β-λ)-cos(α-β)cos(λ-β)
cos(π/6-x)=根号3/3则cos(5π/6+x)-sin(x-π/6)的平方
已知5根号3sinα+5cosα=6根号2sinβ+根号6cosβ=1,且α∈(0,π/3),β∈(π/6,π/2),求cos(α+β)的值
已知cos(π/6-α)+sinα=(4倍根号3)/5,则cos(α-π/3)=
若tanθ=根号3/3,则cos^2θ-sin(θ+π/6)cosθ的值
cos(π/6+a)=根号3/3 求sin(5π/6-a)=?
cos(π/6-a)=根号3/3 则sin(5π/6-2a)值
已知cos(α-π/6)+sinα=(4倍根号3)/5,则sin(α+7π/6)=
已知sin(π/6-a)=根号3/3,则 cos(4π/3+a)
化简sin(x-π/3)-cos(x=π/6)+根号3cosx
化简根号2sin(π/3-x)+根号6cos(π/3-x)
根号3×cosπ／12－sinπ／12=?