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Gyaan Maths
CBSE · Class 6-12
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Class 12 · Mathematics (041) · Unit 1: Relations and Functions
Invertible Functions
Lesson 3 of 3
f
f
f
is invertible iff it is one-one and onto.
(
f
−
1
)
−
1
=
f
(f^{-1})^{-1} = f
(
f
−
1
)
−
1
=
f
.
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One-One & Onto
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All lessons in this unit
1. Types of Relations
2. One-One & Onto
3. Invertible Functions