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Maths TNSB Mentoring
Class 10 Crash course
Relations and functions
Annual Revision IV
10.
Find the images, pre-images and type of function
Question:
5
m.
Let \(f\) be a function \(f: \mathbb{N} \rightarrow \mathbb{N}\) defined by \(f(x) = 3x + 2\), \(x \in \mathbb{N}\).
(i)
Find the images of \(1\), \(2\), \(3\).
(ii)
Find the pre-images of \(29\), \(53\).
(iii)
Identify the type of function.
many-to-one and onto function
many-to-one and into function
one-to-one and onto function
one-to-one and into function
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