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Find the number of bijections from a set...

Find the number of bijections from a set A containing 7 elements onto itself.

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The correct Answer is:
`7!`
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AAKASH SERIES-PERMUTATIONS & COMBINATIONS-EXERCISE -1.2 VERY SHORT ANSWER QUESTIONS
  1. Find the number of 4- digited numbers that can be formed using the dig...

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  2. Find the number of 5 letter words that can be formed using the letters...

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  3. Find the number of four digited number that can be formed using the di...

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  4. Find the number of 5 letter words that can be formed using the letters...

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  5. Find the number of 5 - letter words that can be formed using the lette...

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  6. Find the number 5-digit number s that can be formed using the digits, ...

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  7. Find the number of ways of arranging 'r' things in a line using the gi...

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  8. Find the number of 4 - digit telephone numbers that can be formed usin...

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  9. Find the number of 4 letter words that can be formed using the letters...

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  10. 9 Different letters of an alphabet are given. Find the number of 4 let...

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  11. A number lock has 3 rings and each ring has 9 digits 1, 2, 3,……, 9. Fi...

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  12. Find the the number of functions from a set A containing 5 elements in...

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  13. Find the number of injections from a set A containing 4 elements into ...

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  14. Find the number of surjections from a set A containing 6 elements into...

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  15. Find the number of bijections from a set A containing 7 elements onto ...

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  16. Find the number of (i) 6 (ii) 7 letter palindromes that can be formed ...

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  17. Find the number of seven digited palindromes that can be formed using ...

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