(x-1)²/25+(y+2)²/9的左焦点

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(x-1)²/25+(y+2)²/9的左焦点(x-1)²/25+(y+2)²/9的左焦点(x-1)²/25+(y+2)²/9的左焦点(-3,

(x-1)²/25+(y+2)²/9的左焦点
(x-1)²/25+(y+2)²/9的左焦点

(x-1)²/25+(y+2)²/9的左焦点
(-3,2)