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If the line ax+by+c=0 is a tangent to th...

If the line `ax+by+c=0` is a tangent to the curve `xy=4` then

A

`a lt 0, b gt 0`

B

`a le 0, b gt0`

C

`a lt 0, b lt0`

D

`a le0,blt0`

Text Solution

Verified by Experts

The correct Answer is:
C
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