Question
Download Solution PDFবহুপদ 5x 2 + (5p – 1)x – (2p + 5) এর শূন্যকের সমষ্টি তাদের গুণফলের এক চতুর্থাংশের সমান হয়। p এর মান নির্ণয় করুন।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
বহুপদ 5x 2 + (5p – 1)x – (2p + 5) এর শূন্যকের সমষ্টি = 1/4 × শূন্যকের গুণফল
অনুসৃত সূত্র:
বহুপদের প্রমিত রূপ, ax 2 + bx + c = 0
শূন্যকের সমষ্টি = - b/a
শূন্যকের গুণফল = c/a
গণনা:
শূন্যকের সমষ্টি = - (5p - 1)/5
শূন্যকের গুণফল = - (2p + 5)/5
প্রশ্ন অনুযায়ী;
⇒ - (5p - 1)/5 = 1/4 × [- (2p + 5)/5]
⇒ (5p - 1) = (2p + 5)/4
⇒ 20p - 4 = 2p + 5
⇒ 20p - 2p = 5 + 4
⇒ 18p = 9
⇒ p = 9/18 = 1/2
∴ p এর মান = 1/2
Last updated on Jul 5, 2025
-> RRB NTPC Under Graduate Exam Date 2025 has been released on the official website of the Railway Recruitment Board.
-> The RRB NTPC Admit Card will be released on its official website for RRB NTPC Under Graduate Exam 2025.
-> Candidates who will appear for the RRB NTPC Exam can check their RRB NTPC Time Table 2025 from here.
-> The RRB NTPC 2025 Notification released for a total of 11558 vacancies. A total of 3445 Vacancies have been announced for Undergraduate posts like Commercial Cum Ticket Clerk, Accounts Clerk Cum Typist, Junior Clerk cum Typist & Trains Clerk.
-> A total of 8114 vacancies are announced for Graduate-level posts in the Non-Technical Popular Categories (NTPC) such as Junior Clerk cum Typist, Accounts Clerk cum Typist, Station Master, etc.
-> Prepare for the exam using RRB NTPC Previous Year Papers.
-> Get detailed subject-wise UGC NET Exam Analysis 2025 and UGC NET Question Paper 2025 for shift 1 (25 June) here