{"name":"Let A = {a,b}. Then number of one-one function from A to A possible are", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"Let A = {a,b}. Then number of one-one function from A to A possible are, Is this mapping a function or not a function?, f(x) = {(3,7), (4,2), (5, -1), (8,7)}. Is f inverse x is a function?","img":"https://cdn.poll-maker.com/56-2265090/1598870247922208026939717017895.jpg?sz=1200"}