sinθcosθ-1=0,求θ的值
问题描述：
sinθcosθ-1=0,求θ的值
答
sinθcosθ-1=0 2sinθcosθ=0.5 sin2θ=0.5 2θ=kπ-1/6π θ=k/2π-1/12π
sinθcosθ-1=0,求θ的值
sinθcosθ-1=0 2sinθcosθ=0.5 sin2θ=0.5 2θ=kπ-1/6π θ=k/2π-1/12π