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If A={(x ,\ y): y=e^x ,\ x in R}a n d\ ...

If `A={(x ,\ y): y=e^x ,\ x in R}a n d\ B={(x , y): y=e^(-x),\ x in R}` , then write `AnnBdot`

A

`AnnB=phi`

B

`AnnBne phi`

C

`Auu B=R^(2)`

D

none of these

Text Solution

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The correct Answer is:
B
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