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Maths TNSB Mentoring
Class 10
Relations and functions
Functions I
6.
TBQ - Find domain and codomain
Question:
2
m.
Let \(f = \{(x, y) | x, y \in \mathbb{N} \ \text{and} \ y = 2x\}\) be a relation on \(N\). Find the domain, co-domain, and range. Is this relationship a function?
Domain \(=\)
i
,
i
,
i
,
i
,
...
Co-domain \(=\)
i
,
i
,
i
,
i
,
...
Range \(=\)
i
,
i
,
i
,
i
,
...
\(\mathbb{R}\) is
a function
not a function
.
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