设二维随机变量[tex=2.5x1.357]PWg5V4GQQafckGNgbx6gmw==[/tex]服从圆心在原点的单位圆内的均匀分布，求极坐标[tex=5.857x1.571]JOEsMCNmvUrPt9NFZFjvXdRScuFPWHk6n58offp7nI4=[/tex],[tex=11.071x1.357]yu4sTGcqfPs0xfoLD+/zWuYl/pL3OWHfy7AyetALdsDlUCYK7c6bcu7OkZfXfzvU[/tex]的联合密度函数.
设二维随机变量[tex=2.5x1.357]PWg5V4GQQafckGNgbx6gmw==[/tex]服从圆心在原点的单位圆内的均匀分布，求极坐标[tex=5.857x1.571]JOEsMCNmvUrPt9NFZFjvXdRScuFPWHk6n58offp7nI4=[/tex],[tex=11.071x1.357]yu4sTGcqfPs0xfoLD+/zWuYl/pL3OWHfy7AyetALdsDlUCYK7c6bcu7OkZfXfzvU[/tex]的联合密度函数.
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