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2024-08-20
佬们求解答高等数学吧
佬们求解答，0到π/2是dy，π/2到π是-dy，sinx在0到π恒正，(2x+y)dy+(2x+y)(-dy)=0。为...
2024-08-19
佬们求解答考研数学吧
佬们求解答，0到π/2是dy，π/2到π是-dy，sinx在0到π恒正，(2x+y)dy+(2x+y)(-dy)=0。为...