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cos(π/3),

31 2014-01-17 已知函数f(x=sin(x-π/6 cos(x-π/3.
31 2014-01-17 已知函数f(x=sin(x-π/6 cos(x-π/3.为什么a和2分之三π可以互换位置,高一数学,必修四
为什么a和2分之三π可以互换位置,高一数学,必修四设tan(π=2,求sin-3π cos(π/sin-cos(π)
设tan(π=2,求sin-3π cos(π/sin-cos(π)已知sinα-cosα=1/3,则cos(π/2-2α=
已知sinα-cosα=1/3,则cos(π/2-2α=求定积分0πcos(x/2^2
求定积分0πcos(x/2^2
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