1
IIT-JEE 1986
MCQ (More than One Correct Answer)
+2
-0.5
If the line $$ax+by+c=0$$ is a normal to the curve $$xy=1$$, then
A
$$a > 0,b > 0$$
B
$$a > 0,b < 0$$
C
$$a < 0,b > 0$$
D
$$a < 0,b < 0$$
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