answer que. 20.......
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Step-by-step explanation:
A={-1,0,2,3} and B={1,2,5,8,9,10}
f={(x,y): y= x^2+1}
x belongs to A and y belongs to B.
When x=>-1 ,y=>2 so (-1,2) belongs to f.
When x=>0,y=>1so (0,1) belongs to f.
When x=>2,y=>5 so(2,5) belongs to f.
When x=>3,y=>10 so (3,10) belongs to f.
The elements of f are (0,1),(-1,2),(2,5),(3,10). Hope it helps you.
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