Test Academy | Let M={5,6,7,8} and N={3,4,9,10}. Which one of the following functions is neither one-one nor onto? f={(5,3),(6,4),(7,9),(8,10)}, f={(5,4),(5,9),(6,3),(7,10),(8,10)}, f={(6,4),(7,3),(7,9),(8,10)}, f={(5,3),(5,4),(6,4),(8,9)}

Question

Let M={5,6,7,8} and N={3,4,9,10}. Which one of the following functions is neither one-one nor onto?

Options :

f={(5,3),(6,4),(7,9),(8,10)}
f={(5,4),(5,9),(6,3),(7,10),(8,10)}
f={(6,4),(7,3),(7,9),(8,10)}
f={(5,3),(5,4),(6,4),(8,9)}

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