Grade 11Analytical Geometry
If the two lines are represented by the the equation (lamda)x^2+2y^2–5xy+5x–7y+3=0,then lands equal to
2 Answers
prasad
Sorry it is lamda equals to what not lands............................................................................ .......................................................
Arun
Dear Prasad
Put Delta = 0
Here
Delta = abc + 2fgh - af² - bg² - ch² = 0
Put all the values, hence you can simply find lambda.
Regards
Arun (askIITians forum expert)
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