Unit-I: Sets and Functions
Unit-II: Algebra
Unit-III: Coordinate Geometry
Unit-IV: Calculus
Unit-V: Mathematical Reasoning
Unit-VI: Statistics and Probability

Pictorial Representation of Different types of relation

(i) One-many:

If R \subset A \times B, (a, b) \in R , (a, b^1) \in R and  b \neq b^1, then the relation   R is one-many.

(ii) Many-one:

If R \subset A \times B is called many-one, if  (a,b) \in R, (a^1,b) \in R and  a \neq a^1, then the relation  R is many-one.

(iii) One-one

If R \subset A \times B is called one-one , if  (a, b) \in R, (a^1, b) \in R \implies a =a^1 and  (a,b) \in R, (a,b^1) \in R \implies b=b^1.

 \rightarrow One-one relation is neither many-one nor one-many.

 \rightarrow Less than is both one-many and many-one relation.

 \rightarrow Equality is clearly one-one relation.

 \rightarrow Fatherhood, Motherhood, Brotherhood, Sisterhood are one-many and many -one relation.

 \rightarrow Husbandhood, Wifehood is one-one relation.

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