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Find R If 5p_R = 2^6 P_(R-1) Permutations, - CBSE (Arts) Class 11 - Mathematics

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Question

Find r if `""^5P_r = 2^6 P_(r-1)`

Solution

∴0 ≤ ≤ 5

Hence, r ≠ 10

r = 3

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 11 (2018 to Current)
Chapter 7: Permutations and Combinations
Q: 7.1 | Page no. 148

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Solution Find R If 5p_R = 2^6 P_(R-1) Permutations, Concept: Concept of Permutations.
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