Question
Download Solution PDFद्विघात समीकरण x2 − 4x + k = 0 का एक मूल x = 3 है। दूसरा मूल ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
समीकरण: x2 − 4x + k = 0
प्रयुक्त अवधारणा:
एक द्विघात समीकरण के मूल समीकरण को संतुष्ट करते हैं, इसलिए एक मूल का मान रखकर एक अज्ञात चर और दूसरा मूल ज्ञात किया जा सकता है।
गणना:
समीकरण में x का मान = 3 रखते हैं।
इसलिए,
x2 – 4x + k = 0
⇒ 9 – 12 + k = 0
⇒ k = 3
k का मान समीकरण में रखने पर, हमें प्राप्त होता है:
x2 – 4x + 3 = 0
⇒ x2 – 3x – x + 3 = 0
⇒ x(x – 3) – 1(x – 3) = 0
⇒ (x – 3)(x – 1) = 0
⇒ x = 3 और 1
∴ समीकरण का दूसरा मूल 1 है।
Last updated on Jul 10, 2025
-> RRB ALP CBT 2 Result 2025 has been released on 1st July at rrb.digialm.com.
-> RRB ALP Exam Date OUT. Railway Recruitment Board has scheduled the RRB ALP Computer-based exam for 15th July 2025. Candidates can check out the Exam schedule PDF in the article.
-> Railway Recruitment Board activated the RRB ALP application form 2025 correction link, candidates can make the correction in the application form till 31st May 2025.
-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.
-> Bihar Home Guard Result 2025 has been released on the official website.
-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.
-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.
->The candidates must have passed 10th with ITI or Diploma to be eligible for this post.
->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.
-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways.
-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.
-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here