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The real value of k for which exactly one root of (k^2+2k-3)x^2+(k^2 -2k-15)x+k^2 lies at infinity is (a) -3 (b) -1 (c) 1 (d) 0

The real value of k for which exactly one root of (k^2+2k-3)x^2+(k^2 -2k-15)x+k^2  lies at infinity  is (a) -3 (b) -1 (c) 1 (d) 0

Grade:10

1 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
5 years ago
for k=-3
coff of x^2= coeff x

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