向量a=(sinθ/2,cos(θ/2+π/4) 向量b=(根号3sin(θ/2+π/4),cosθ/2),θ属(0,π) 并满足a//b 则θ值
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![向量a=(sinθ/2,cos(θ/2+π/4) 向量b=(根号3sin(θ/2+π/4),cosθ/2),θ属(0,π) 并满足a//b 则θ值](/uploads/image/z/13303287-63-7.jpg?t=%E5%90%91%E9%87%8Fa%3D%28sin%CE%B8%2F2%2Ccos%28%CE%B8%2F2%2B%CF%80%2F4%29+%E5%90%91%E9%87%8Fb%3D%28%E6%A0%B9%E5%8F%B73sin%28%CE%B8%2F2%2B%CF%80%2F4%29%2Ccos%CE%B8%2F2%29%2C%CE%B8%E5%B1%9E%EF%BC%880%2C%CF%80%EF%BC%89+%E5%B9%B6%E6%BB%A1%E8%B6%B3a%2F%2Fb+%E5%88%99%CE%B8%E5%80%BC)
向量a=(sinθ/2,cos(θ/2+π/4) 向量b=(根号3sin(θ/2+π/4),cosθ/2),θ属(0,π) 并满足a//b 则θ值
向量a=(sinθ/2,cos(θ/2+π/4) 向量b=(根号3sin(θ/2+π/4),cosθ/2),θ属(0,π) 并满足a//b 则θ值
向量a=(sinθ/2,cos(θ/2+π/4) 向量b=(根号3sin(θ/2+π/4),cosθ/2),θ属(0,π) 并满足a//b 则θ值
[根号3sin(θ/2+π/4)]/[sinθ/2]=[cosθ/2]/[cos(θ/2+π/4)]
根号3cosθ=sinθ
tanθ=根号3
θ=60°
没有看懂最后一个是什么