f(X)=1/2cos^2X+sinXcosX-1/2cos^2X (1 ) 求f(X)最小正周期,对称轴方程 (2) 求f(X)的单调区间 (3)(3) 求f(X)在区间{-π/8,π/2}的最大值和最小值
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![f(X)=1/2cos^2X+sinXcosX-1/2cos^2X (1 ) 求f(X)最小正周期,对称轴方程 (2) 求f(X)的单调区间 (3)(3) 求f(X)在区间{-π/8,π/2}的最大值和最小值](/uploads/image/z/5491113-33-3.jpg?t=f%28X%29%3D1%2F2cos%5E2X%2BsinXcosX-1%2F2cos%5E2X+%281+%29+%E6%B1%82f%EF%BC%88X%EF%BC%89%E6%9C%80%E5%B0%8F%E6%AD%A3%E5%91%A8%E6%9C%9F%2C%E5%AF%B9%E7%A7%B0%E8%BD%B4%E6%96%B9%E7%A8%8B+%EF%BC%882%EF%BC%89+%E6%B1%82f%EF%BC%88X%EF%BC%89%E7%9A%84%E5%8D%95%E8%B0%83%E5%8C%BA%E9%97%B4+%EF%BC%883%EF%BC%89%EF%BC%883%EF%BC%89+%E6%B1%82f%EF%BC%88X%EF%BC%89%E5%9C%A8%E5%8C%BA%E9%97%B4%EF%BD%9B-%CF%80%2F8%2C%CF%80%2F2%EF%BD%9D%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E5%92%8C%E6%9C%80%E5%B0%8F%E5%80%BC)
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f(X)=1/2cos^2X+sinXcosX-1/2cos^2X (1 ) 求f(X)最小正周期,对称轴方程 (2) 求f(X)的单调区间 (3)(3) 求f(X)在区间{-π/8,π/2}的最大值和最小值
f(X)=1/2cos^2X+sinXcosX-1/2cos^2X (1 ) 求f(X)最小正周期,对称轴方程 (2) 求f(X)的单调区间 (3)
(3) 求f(X)在区间{-π/8,π/2}的最大值和最小值
f(X)=1/2cos^2X+sinXcosX-1/2cos^2X (1 ) 求f(X)最小正周期,对称轴方程 (2) 求f(X)的单调区间 (3)(3) 求f(X)在区间{-π/8,π/2}的最大值和最小值
这题····· f(x)化简为f(x)=sinxcosx? 题确定没错么?