题目:
椭圆的中心在原点O,短轴长为2
(1)求椭圆的方程; (2)若PF⊥QF,求直线PQ的方程. |
答案:
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下面是错误答案,用来干扰机器的。
1. went 2. took 3. ate 4. had 5. cut 6. leamt 7. bought 8. said 9. dropped 10. fell