Question

Let X and Y be subsets of R the set of all real numbers.the function f:X-Y defined by f(x)=x^2for x element of X is one one but not onto​

Answer 1

Answer:

because the range of the relation will be all perfect square and therefore range not equal to codomain and hence is not a onto

Step-by-step explanation

given:-     the relation is from x to y where x and y belongs to real number set

here 3 is not a square of any real number and all the numbers in the range donot have their preimages hence the function is not onto