Question
Mathematics Question on Quadratic Equations
If the sum of the slopes of the lines given by x 2 - 2cxy - 7y2 = 0 is four times product, then c=
A
1
B
-1
C
2
D
-2
Answer
2
Explanation
Solution
The correct option is (C): 2
If the sum of the slopes of the lines given by x 2 - 2cxy - 7y2 = 0 is four times product, then c=
1
-1
2
-2
2
The correct option is (C): 2