(sinπ/24)(cosπ/24)(cosπ/12)
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/18 09:45:56
(sinπ/24)(cosπ/24)(cosπ/12)(sinπ/24)(cosπ/24)(cosπ/12)(sinπ/24)(cosπ/24)(cosπ/12)八分之一!
(sinπ/24)(cosπ/24)(cosπ/12)
(sinπ/24)(cosπ/24)(cosπ/12)
(sinπ/24)(cosπ/24)(cosπ/12)
八分之一!
(sinπ/24)(cosπ/24)(cosπ/12)
(sinπ/24)(cosπ/24)(cosπ/12)
sinπ/24-cosπ/24等于多少
求证1、sin l-sin y=2cos(l+y)/2 sin(l-y)/22、cos l+cos y=2cos(l+y)/2 cos(l+y)/23、cos l-cos y=-2sin (l+y)/2 sin (l-y)/24、tanatan2a/(tan2a-tana)+根号3(sin²a-cos²a)=2sin(2a-π/3)对了,还有:是否存在锐角l,y,
已知tan(θ-π)=-24/7,求(sinθ+cosθ)/(2sinθ-cosθ)的值
θ∈(0,π/2),比较cosθ、sin(cosθ)、cos(sinθ)的大小
已知α∈(0,π/4),a=(sinα)^(cosα),b=(sinα)^(sinα),c=(cosα)^(sinα),则a、b、c的大小关系是
求SINπ/64 COSπ/64 COSπ/32 COSπ/16 COSπ/8
sinπ+cos+(-π)+tanπ过程.
若α∈(-π/2+2kπ,2kπ)(k∈Z),则sinα,cosα,tanα的大小关系是A.tanα>sinα>cosαB.tanα>cosα>sinαC.tanα<sinα<cosαD.tanα<cosα<sinα
sinπ/8×cosπ/8
sinπ/8×cosπ/8
sinπ/8*cosπ/8
sin(π/10)cos(π/5)
sinπ/12*cosπ/12=?
sinπ/8cosπ/8=( )
cosπ/6=(),sinπ=()
怎样化简函数 cosπ/4cosπ/3-sinπ/4sinπ/3cosπ/4cosπ/3-sinπ/4sinπ/3