Find the value of k, if the lines represented by the equation 9x + (k+1)xy + 4y = 0 are coincide.
Answers
Answered by
1
Answer:
Correct option is 9
9
If eqnofline is ax²+ 2bxy + by² = 0
coincident line
h² = ab
in our case
(−6)² = k⋅4
k = (36/4) = 9
Similar questions