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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,b `in` R

B

agt0,bgt0

C

alt0,bgt0 or agt0,blt0

D

alt0,blt0

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The correct Answer is:
C
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MOTION-TANGENT & NORMAL-EXERCISE 1
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