1.

If the bisector of the angles between the pairs of lines given by the equation ax2+2hxy+by2=0 and ax2+2hxy+by2+λ(x2+y2)=0 be coincident, then λ =

Answer»

If the bisector of the angles between the pairs of lines given by the equation
ax2+2hxy+by2=0 and ax2+2hxy+by2+λ(x2+y2)=0
be coincident, then λ =




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