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Functions question

2021 · 25 Jul · Shift 2 · Q36
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  5. /2021 · 25 Jul · Shift 2 · Q36

Functions question

2021 · 25 Jul · Shift 2 · Q36

JEE MainMathematicsFunctionsMCQ+4 / −1
Consider function f : A →\to→ B and g : B →\to→ C (A, B, C ⊆\subseteq⊆ R) such that (gof) −-− 1 exists, then :
  1. A
    f and g both are one-one
  2. B
    f and g both are onto
  3. C
    f is one-one and g is onto
  4. D
    f is onto and g is one-one
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