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If the line a x+b y+c=0 is a normal to t...

If the line `a x+b y+c=0` is a normal to the curve `x y=1,` then `a >0,b >0` `a >0,b<0` `a<<0,b>>0` (d) `a<0,b<0` none of these

A

a ge 0, b ge 0

B

a ge 0, b le 0

C

a le 0,b ge 0

D

a le 0, b le 0

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A DAS GUPTA-Application of dy/dx-Exercise
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