Let \( \mathrm{P}_{\mathrm{n}} \) denotes the number of permutation... VIDEO
Let \( \mathrm{P}_{\mathrm{n}} \) denotes the number of permutations of \( \mathrm{n} \) distinct things taken all at a time and \( \mathrm{x}_{\mathrm{n}}={ }^{\mathrm{n}+5} \mathrm{C}_{4}-\left(\frac{143}{96}\right)\left(\frac{\mathrm{P}_{\mathrm{n}+5}}{\mathrm{P}_{\mathrm{n}+3}}\right) \) (where \( \left.\mathrm{n} \in \mathrm{N}\right) \). The possible value of \( \mathrm{n} \) for which \( \mathrm{x}_{\mathrm{n}} \) is negative, can be
\( \mathrm{P} \)
(A) 1
(B) 2
(C) 3
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions 2023-02-13 Write the opposite (or inverse) of the following statements :
If a ... 2023-02-13 Find the number of ways in which two squares can be selected from a... 2023-02-13 Chlorine reacts with hot and concentrated \( \mathrm{NaOH} \) and p... 2023-02-13 Number of permutations of \( 1,2,3,4,5,6,7,8 \) and 9 taken all at ... 2023-02-13 Write the converse of the following statements :
If you do all the ... 2023-02-13 Which one of the following processes will produce hard water?
(RPMT... 2023-02-13 (I) \( \mathrm{H}_{2} \mathrm{O}_{2}+\mathrm{O}_{3} \longrightarrow... 2023-02-13 एक कक्षा में डेस्कों पर बैठने की व्यवस्था करने पर तीन विद्यार्थी रोहिनी, संध्या तथा बीना क्रमशः ... 2023-02-13 Radioactive isotope of hydrogen is:
(a) uranium
(b) deuterium
(c) t... 2023-02-13 The redox reaction among the following is :
[JEE Main-2020 (January... 2023-02-13 Let \( \mathrm{P}_{\mathrm{n}} \) denotes the number of permutation... 2023-02-13 Write the converse of the following statements :
If two integers \(... 2023-02-13 Write the following conditional sentences in standard form "If \( p... 2023-02-13 How many neutrons are present in tritium nucleus?
(a) 2
(b) 3
(c) 1... 2023-02-13 These questions consist of two statements each, printed as statemen... 2023-02-13 In the following reactions, products (A) and (B), respectively, are... 2023-02-13 Write the converse of the following statements:
If a number \( n \)... 2023-02-13 The 9 horizontal and 9 vertical lines on an \( 8 \times 8 \) chessb... 2023-02-13 Hydrogen can be prepared by the action of dil. \( \mathrm{H}_{2} \m... 2023-02-13 Which of the following reactions are
\( \mathrm{P} \) disproportion... 2023-02-13 The set of values of \( r \) simultaneously satisfying the system o...