IF A={(x,y):y=e^x, x belongs to R}

B={(x,y):y=e^-x, x belongs to R}, then find A INTERSECTION B.

Dear vardaan

y=e^x  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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