摘要:椭圆25x2-150x+9y2+18y+9=0的两个焦点坐标是[ ] A. B. C. D.
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椭圆25x2-150x+9y2+18y+9=0的两个焦点坐标是( )
A、(-3,5),(-3,-3) | B、(3,3),(3,-5) | C、(1,1),(-7,1) | D、(7,-1),(-1,-1) |
椭圆25x2-150x+9y2+18y+9=0的两个焦点坐标是( )
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A.(-3,5),(-3,-3) | B.(3,3),(3,-5) | C.(1,1),(-7,1) | D.(7,-1),(-1,-1) |
椭圆25x2-150x+9y2+18y+9=0的两个焦点坐标是( )
A.(-3,5),(-3,-3)
B.(3,3),(3,-5)
C.(1,1),(-7,1)
D.(7,-1),(-1,-1)
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A.(-3,5),(-3,-3)
B.(3,3),(3,-5)
C.(1,1),(-7,1)
D.(7,-1),(-1,-1)
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