The number of one-one maps from a, b, c to 1, 2, 3, 4, 5, 6, 7 such that a maps to 2 , is:
Mathematics · Class 12 · CBSE — Relations and Functions
The number of one-one maps from \(\{a, b, c\}\) to \(\{1, 2, 3, 4, 5, 6, 7\}\) such that \(a\) maps to \(2\), is:
- 343
- 36
- 210
- 30
Answer
(D) 30
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