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RELATIONS AND FUNCTIONS — MATHS STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceMATHSRELATIONS AND FUNCTIONS2 Marks
Question
$F = \{(a, 2), (b, 1), (c, 1)\}.$
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Answer

$F: S \rightarrow T$ is defined as:
$F ={(a, 2), (b, 1), (c, 1)}$
Since $F(b) = F(c) = 1, F$ is not one$-$one.
Hence, $F$ is not invertible i.e., $F^{-1}$ does not exist.

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