Home › TS EAPCET (Engineering) › Mathematics › Function (mathematics) › A bijection from a 5-element set X onto a set Y …
A bijection from a 5-element set X onto a set Y implies Y has how many elements?
A5
B10
C4
D6
Answer & Solution
Correct answer: A. 5
A one-to-one correspondence pairs every element, so both sets have the same size.
Related questions
What is the inverse of x squared on nonnegative reals called?Why is f(x) = x squared from the reals to [0, infinity) not invertible?For f(x) = 3x and g(x) = x + 5, g(f(x)) is 3x + 5. What is its inverse?How is the inverse of g after f obtained?Which function on a set X is its own inverse?A function equal to its own inverse is called what?For an invertible f with domain X and codomain Y, f inverse has which domain?A function is invertible exactly when it has which property?