设函数f(x)由参数方程x=lnsint,y=cost + tsint-π/12 (0
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设函数f(x)由参数方程x=lnsint,y=cost+tsint-π/12(0设函数f(x)由参数方程x=lnsint,y=cost+tsint-π/12(0设函数f(x)由参数方程x=lnsint
设函数f(x)由参数方程x=lnsint,y=cost + tsint-π/12 (0
设函数f(x)由参数方程x=lnsint,y=cost + tsint-π/12 (0
设函数f(x)由参数方程x=lnsint,y=cost + tsint-π/12 (0
没错啊,dx/dt=cost/sint 楼主可以把题目拍下来吗?