Question
Download Solution PDFa2 - b2 = 88, a - b = 4 అయితే ab యొక్క విలువను కనుగొనండి.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చినది:
a2 - b2 = 88
a - b = 4
ఉపయోగించిన సూత్రం:
a2 - b2 = (a - b)(a + b)
లెక్కింపు:
a - b = 4 ----(1)
(a - b)(a + b) = 88
⇒ 4 × (a + b) = 88
⇒ a + b = 88/4
⇒ a + b = 22 ----(2)
సమీకరణం (1) మరియు సమీకరణం (2) కలుపుతూ, మనకు లభిస్తుంది
⇒ a - b + a + b = 4 + 22
2a = 26
⇒ a = 13
(2) సమీకరణంలో a విలువను ఉంచండి , మనకు లభిస్తుంది
13 + b = 22
⇒ b = 9
ab = 13 × 9 విలువ
Ab = 117
∴ ab విలువ 117.
Last updated on Jul 10, 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