P是双曲线x ²/9-y ²/16=1的右支上一点,M、N分别是圆(x+5)²+y ²=4和(x-5)²+y ²=1上的点,则|PM |-|PN|的最大值为_________(求详细过程)
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P是双曲线x ²/9-y ²/16=1的右支上一点,M、N分别是圆(x+5)²+y ²=4和(x-5)²+y ²=1上的点,则|PM |-|PN|的最大值为_________(求详细过程)
P是双曲线x ²/9-y ²/16=1的右支上一点,
M、N分别是圆(x+5)²+y ²=4和(x-5)²+y ²=1上的点,则|PM |-|PN|的最大值为_________(求详细过程)
P是双曲线x ²/9-y ²/16=1的右支上一点,M、N分别是圆(x+5)²+y ²=4和(x-5)²+y ²=1上的点,则|PM |-|PN|的最大值为_________(求详细过程)