Home › AP EAPCET (Engineering) › Mathematics › Algebra: Functions › The identity function on a set X sends each elem…
The identity function on a set X sends each element x to
Ax itself
Bthe number 1
Cthe number 0
Dthe value -x
Answer & Solution
Correct answer: A. x itself
The identity map is the inclusion of X into itself and leaves every element unchanged.
Related questions
A differentiable function with always positive derivative on an interval isIf F = 9C/5 + 32 converts Celsius to Fahrenheit, the inverse formula is C =If g(f(x)) = 6x + 5 where f(x) = 2x + 1, then g(x) equalsThe real function f(x) = x/(x² - 4) is undefined atIf f sends every integer to 0, the preimage of 0 isIn the composite g∘f, which function is applied first?A function from a set X into the one-element set {s} sends every x toA bijective function is one that is both