Answer 4.2:7
From Förberedande kurs i matematik 1
(Difference between revisions)
			  			                                                      
		          
			 (Translated into English)  | 
				m  (Svar 4.2:7 moved to Answer 4.2:7: Robot: moved page)  | 
			
Current revision
| The width of the river is \displaystyle \ \displaystyle\frac{10}{\sqrt{3}-1} m \displaystyle \approx 13\textrm{.}7 m. | 
