已知cosθ=-1/5 5π/2<θ<3π 则sinθ/2等于 函数f(x)=2cos∧2+sin2x...已知cosθ=-1/5 5π/2<θ<3π 则sinθ/2等于函数f(x)=2cos∧2+sin2x的最小值是已知A,B均为钝角且sinA=√5/5 sinB=√10/10,则A+B的值等于已知t
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 05:02:31
![已知cosθ=-1/5 5π/2<θ<3π 则sinθ/2等于 函数f(x)=2cos∧2+sin2x...已知cosθ=-1/5 5π/2<θ<3π 则sinθ/2等于函数f(x)=2cos∧2+sin2x的最小值是已知A,B均为钝角且sinA=√5/5 sinB=√10/10,则A+B的值等于已知t](/uploads/image/z/996158-38-8.jpg?t=%E5%B7%B2%E7%9F%A5cos%CE%B8%3D-1%2F5+5%CF%80%2F2%EF%BC%9C%CE%B8%EF%BC%9C3%CF%80+%E5%88%99sin%CE%B8%2F2%E7%AD%89%E4%BA%8E+%E5%87%BD%E6%95%B0f%28x%29%3D2cos%E2%88%A72%EF%BC%8Bsin2x...%E5%B7%B2%E7%9F%A5cos%CE%B8%3D-1%2F5+5%CF%80%2F2%EF%BC%9C%CE%B8%EF%BC%9C3%CF%80+%E5%88%99sin%CE%B8%2F2%E7%AD%89%E4%BA%8E%E5%87%BD%E6%95%B0f%28x%29%3D2cos%E2%88%A72%EF%BC%8Bsin2x%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E6%98%AF%E5%B7%B2%E7%9F%A5A%2CB%E5%9D%87%E4%B8%BA%E9%92%9D%E8%A7%92%E4%B8%94sinA%3D%E2%88%9A5%2F5+sinB%3D%E2%88%9A10%2F10%2C%E5%88%99A%EF%BC%8BB%E7%9A%84%E5%80%BC%E7%AD%89%E4%BA%8E%E5%B7%B2%E7%9F%A5t)
xTNA~nt]w5Y^ m$/Rѥh!腱mt3r+#m$Kf|sfz-Z^a Ħ=.1Rvt'D7{|
߂{mnnM}>l6Ij7'%!u8ּi`) 'PV/ߘ__m6b_ݘZMg~@m4|q~P-}5s>u84Mcv$m@Iم߅Q( P 9UH!ߩ1zb]c