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The value of $k$ for which $4x^2 – 8xy + ky^2 = 0$ does not represent a pair of straight lines (both passing through the origin) is:

1. 0
2. 2
3. 9
4. 3
asked in Non GATE | 195 views

d) 3
0
ans is C.

for k=9, it will become an expression for a circle.
0

1
+1 vote
2