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Grade: 8

                        

If one of the lines given by 6x 2 -xy+4cy 2 =0 is 3x+4y=0,then c=

5 months ago

Answers : (2)

Arun
24737 Points
							
If 3x +4y = 0 is one line
 
3x = -4y
 
Now put this in Equation of pair of line
 
96y²/9  + 4y²/3 + 4cy² = 0
 
96 + 12 + 36c = 0
 
36c = -108
c = -3
 
Hope it helps
5 months ago
Vikas TU
12119 Points
							
Dear student 
6x^2 -xy +4cy^2 =0
put y = -(3x/4)
then 6x^2 +3x^2/4 +4c*(9x^2/16)=0
c = -3 
Good Luck 
Cheers 
5 months ago
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