Answer 4.1:7
From Förberedande kurs i matematik 1
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				m  (Robot: Automated text replacement  (-{{:4.1 - Figur - Cirkeln x² + y² + 4y = 0}} +{{:4.1 - Figure - The circle x² + y² + 4y = 0}}))  | 
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Revision as of 13:01, 12 September 2008
| a) | 
 
  | b) | 
 
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| c) | d) | 4.1 - Figur - Cirkeln x² - 2x + y² + 2y = -2 | 
