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Ex 1.3, 3 (i) - Chapter 1 Class 12 Relation and Functions
Last updated at December 16, 2024 by Teachoo
Chapter 1 Class 12 Relation and Functions
Concept wise
- Relations - Definition
- Empty and Universal Relation
- To prove relation reflexive, transitive, symmetric and equivalent
- Finding number of relations
- Function - Definition
- To prove one-one & onto (injective, surjective, bijective)
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Composite functions
- Composite functions and one-one onto
- Finding Inverse
- Inverse of function: Proof questions
- Binary Operations - Definition
- Whether binary commutative/associative or not
- Binary operations: Identity element
- Binary operations: Inverse
Transcript
Ex 1.3, 3 Find ššš and ššš, if (i) f(x) = |š„| and g (x) = |5š„ ā2| f(x) = |š„| , g(x) = |5š„ā2| f(x) = |š„| f(g(x)) = |š(š„)| fog(x) = |(|5š„ ā2|)| = |šš āš| g(x) = |5š„ ā2| g(f(x)) =|5š(š„) ā2| gof (x) = |(š|š|āš)|
