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```        IF A={(x,y):y=ex, x belongs to R}
B={(x,y):y=e-x, x belongs to R}, then find A INTERSECTION B.```
7 years ago

147 Points
```										Dear vardaan
y=ex  here x can vary from - infinity to + infinity but y can be only positive number

so A = {R,positive number}

and for y =e-x  x can vary from - infinity to + infinity but y can be only  positive number
so B ={R,positive  number}
so A intersection B is ={ R,positive   number}

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```
7 years ago
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