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Grade: 11
        
show that the equation 3x​2+7xy+2y2+5x+5y+2=0 represents apair of straight lines and also find the separate equation of the straight lines
one year ago

Answers : (1)

Arun
22817 Points
							
Dear Shreyas
 
Find \Delta for this equation and it should be zero for a pair of straight lines.
 
\Delta = abc + 2fgh -af² - bg²  - ch²
 
one year ago
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