WebFind the value of r if 1. 5 × 4Pr = 6 × 5Pr – 1 2. 5Pr = 6Pr – 1 asked Jun 26, 2024 in Permutation and Combinations by kavitaKumari ( 13.5k points) class-11 WebJan 18, 2024 · Click here 👆 to get an answer to your question ️ Find r, if 5(4pr) =6(5pr-1) bibamechal bibamechal 18.01.2024 Economy Secondary School answered Find r, if 5(4pr) =6(5pr-1) 1 See answer Advertisement Advertisement rishantkumar089 rishantkumar089 Answer: Question. Bookmark. Find 'r', if 5 . 4. P . r =6 . 5. P . r−1. Medium. Solution ...
Find r, if 5(4pr) =6(5pr-1) - Brainly.in
Web161 Low Voltage Technician jobs available in Candler-McAfee, GA on Indeed.com. Apply to Low Voltage Technician, Audio Visual Technician, Entry Level Installer and more! WebFind r, if 5. 4P r=6. 5P r−1 Medium Solution Verified by Toppr Given that, 5. 4P r=6. 5P r−1 nP r= (n−r)!n! ⇒ 5× (4−r)!4! =6× (5−r+1)!5! ⇒ (4−r)!5! = (6−r)!6×5! ⇒ (4−r)!1 = … getty thesaurus geographic names
If 5.4Pr=6.5Pr-1 then find r - Brainly.in
WebMar 2, 2024 · Best answer Correct Answer - Option 3 : 3 Given: 5 × 4 P r = 6 × 5 P r – 1 Formula used: P (n, r) = n!/ (n –r) ! Where, The number of possible arrangements for are … WebFind r, if 5. 4P r=6. 5P r−1 Medium Solution Verified by Toppr Given that, 5. 4P r=6. 5P r−1 nP r= (n−r)!n! ⇒ 5× (4−r)!4! =6× (5−r+1)!5! ⇒ (4−r)!5! = (6−r)!6×5! ⇒ (4−r)!1 = (6−r)(5−r)(4−r)!6 ⇒ 1= (6−r)(5−r)6 ⇒ (6−r)(5−r)=6 ⇒ r 2−11r+24=0 ⇒ r 2−8r−3r+24=0 ⇒ r=8 or r=3⇒r=3 r =8 because r should be ≤n implies r≤4 Was this answer helpful? 0 0 WebSep 3, 2024 · The Correct answer is r = 3. 5 * ⁴P₃ = 6 * ⁵P₂. Procedure: Let us replace r with a. Now the final equation to be solved is . 5 * ⁴Pₐ = 6 * ⁵Pₐ₋₁ find a => 5 * 4!/(4 - a)! = 6 * … christopher olah lstm