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高中一年级数学特殊角的正弦函数值和余弦函数值表Xπ/6π/4π/3π/22π/35π/6π7π/64π/33π/25π/311π/6y=sinxy=cosx

题目详情
高中一年级数学特殊角的正弦函数值和余弦函数值表
X π/6 π/4 π/3 π/2 2π/3 5π/6 π 7π/6 4π/3 3π/2 5π/3 11π/6
y=sinx
y=cosx
▼优质解答
答案和解析
X π/6 π/4 π/3 π/2 2π/3 5π/6 π
y=sinx 1/2 √2/2 √3/2 1 √3/2 1/2 0
y=cosx √3/2 √2/2 1/2 0 -1/2 -√3/2 -1
X 7π/6 4π/3 3π/2 5π/3 11π/6
y= -1/2 -√3/2 -1 -√3/2 -1/2
y= -√3/2 -1/2 0 1/2 √3/2