jee-main 2021 Q74

jee-main · India · session3_25jul_shift2 Composite & Inverse Functions Injectivity, Surjectivity, or Bijectivity Classification

Consider function $f : A \rightarrow B$ and $g : B \rightarrow C ( A , B , C \subseteq R )$ such that $( g o f ) ^ { - 1 }$ exists, then:
(1) $f$ and $g$ both are one-one
(2) $f$ and $g$ both are onto
(3) $f$ is one-one and $g$ is onto
(4) $f$ is onto and $g$ is one-one

Consider function $f : A \rightarrow B$ and $g : B \rightarrow C ( A , B , C \subseteq R )$ such that $( g o f ) ^ { - 1 }$ exists, then:\\
(1) $f$ and $g$ both are one-one\\
(2) $f$ and $g$ both are onto\\
(3) $f$ is one-one and $g$ is onto\\
(4) $f$ is onto and $g$ is one-one

Paper Questions

Q61 Q62 Q63 Q64 Q65 Q66 Q67 Q68 Q69 Q70 Q71 Q72 Q73 Q74 Q75