Question
Download Solution PDF\(x + \frac{{20}}{x} = 9\) या द्विघात समीकरणाची मुळे काय आहेत?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेले आहे:
\(x + \frac{{20}}{x} = 9\)
वापरलेले सूत्र:
\(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
उकल:
सरलरूप दिल्यास - \(x + \frac{{20}}{x} = 9\)
⇒ x2 - 9x + 20 = 0
\(x = {9 \pm \sqrt{-9^2-4(20)} \over 2} = {9 \pm \sqrt{81-80} \over 2}\)
x = 8/2 किंवा 10/2
x = 4, 5
म्हणून, 2 हा योग्य पर्याय आहे.
Last updated on Jul 18, 2025
-> A total of 1,08,22,423 applications have been received for the RRB Group D Exam 2025.
-> The RRB Group D Exam Date will be announced on the official website. It is expected that the Group D Exam will be conducted in August-September 2025.
-> The RRB Group D Admit Card 2025 will be released 4 days before the exam date.
-> The RRB Group D Recruitment 2025 Notification was released for 32438 vacancies of various level 1 posts like Assistant Pointsman, Track Maintainer (Grade-IV), Assistant, S&T, etc.
-> The minimum educational qualification for RRB Group D Recruitment (Level-1 posts) has been updated to have at least a 10th pass, ITI, or an equivalent qualification, or a NAC granted by the NCVT.
-> Check the latest RRB Group D Syllabus 2025, along with Exam Pattern.
-> The selection of the candidates is based on the CBT, Physical Test, and Document Verification.
-> Prepare for the exam with RRB Group D Previous Year Papers.