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shivanshi asthana Grade: 11
        

x2+2xysecthita+y2=0..solve this equation to get two separate straight lines......plz mention those straight lines also...thanks...

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Deab shivanshi


for the given equation to represent two seperate line


h2 -ab>0


sec2θ -1>0


sec2θ >1


θ will take all the value except intigral multiple of ∏


seperate lines are


y=m1x           y=m2x




where m1.m2  = [-h ±√h2-ab ]/b


                     = -secθ ±√sec 2θ-1


                     =-secθ ±tanθ


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Badiuddin



7 years ago
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