(1)y=2sin^2 x-cos x-1 最小值 (2)y=sinxcos(x-π/3)+sinxcosx最值 (3)y=sinxsin(π/2+x)+2sin^2x-1最值求答案阿!要具体步骤阿
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![(1)y=2sin^2 x-cos x-1 最小值 (2)y=sinxcos(x-π/3)+sinxcosx最值 (3)y=sinxsin(π/2+x)+2sin^2x-1最值求答案阿!要具体步骤阿](/uploads/image/z/11196868-4-8.jpg?t=%281%29y%3D2sin%5E2+x-cos+x-1+%E6%9C%80%E5%B0%8F%E5%80%BC+%282%29y%3Dsinxcos%28x-%CF%80%2F3%29%2Bsinxcosx%E6%9C%80%E5%80%BC+%283%29y%3Dsinxsin%28%CF%80%2F2%2Bx%29%2B2sin%5E2x-1%E6%9C%80%E5%80%BC%E6%B1%82%E7%AD%94%E6%A1%88%E9%98%BF%21%E8%A6%81%E5%85%B7%E4%BD%93%E6%AD%A5%E9%AA%A4%E9%98%BF)
(1)y=2sin^2 x-cos x-1 最小值 (2)y=sinxcos(x-π/3)+sinxcosx最值 (3)y=sinxsin(π/2+x)+2sin^2x-1最值求答案阿!要具体步骤阿
(1)y=2sin^2 x-cos x-1 最小值 (2)y=sinxcos(x-π/3)+sinxcosx最值 (3)y=sinxsin(π/2+x)+2sin^2x-1最值
求答案阿!
要具体步骤阿
(1)y=2sin^2 x-cos x-1 最小值 (2)y=sinxcos(x-π/3)+sinxcosx最值 (3)y=sinxsin(π/2+x)+2sin^2x-1最值求答案阿!要具体步骤阿
1)3/2
2)(根号3)/4
-(3根号3)/4
3)(根号5)/2
-(根号5)/2