Search for: If a1,a2,a3,…,a4001are term of an AP such that 1a1a2+1a2a3+…+1a4000a4001=10a2 and a2+a4000=50, then a1−a4001is equal to If a1,a2,a3,…,a4001are term of an AP such that 1a1a2+1a2a3+…+1a4000a4001=10a2 and a2+a4000=50, then a1−a4001is equal to A20B30C40DNone of these Fill Out the Form for Expert Academic Guidance!l Grade ---Class 1Class 2Class 3Class 4Class 5Class 6Class 7Class 8Class 9Class 10Class 11Class 12 Target Exam JEENEETCBSE +91 Preferred time slot for the call ---9 am10 am11 am12 pm1 pm2 pm3 pm4 pm5 pm6 pm7 pm8pm9 pm10pm Please indicate your interest Live ClassesBooksTest SeriesSelf Learning Language ---EnglishHindiMarathiTamilTeluguMalayalam Are you a Sri Chaitanya student? NoYes Verify OTP Code (required) I agree to the terms and conditions and privacy policy. Solution:Now,1a1a2+1a2a3+…+1a4000a4001=1da2−a1a1a2+a3−a2a2a3+…+a4001−a4000a4000a4001=1d1a1−1a2+1a2−1a3+…+1a4000−1a4001=1d1a1−1a4001=4000a1a4001=10 (given) ⇒ a1a4001=400 ...(i) a1+a4001=a2+a4000=50 .....(ii)∴ a1−a40012=a1+a40012−4a1a4001=(50)2−1600⇒ a1−a4001=30 Related content How to use NEET UG College Predictor 2024 to find your dream Medical College Is a Gap Certificate for NEET Repeaters Necessary? General Knowledge Questions With Answers on Islamic CBSE Class 10 Worksheets NEET Rank Predictor 2024: Calculate Your Rank by Marks Why to Choose Infinity Learn NEET Rank Predictor 2024 – The Most Accurate NEET Rank Predictor CBSE Class 10 Science MCQs CBSE Class 9 Science Structure of Atom MCQs Class 7 MCQs for All Subjects with Answers Raidas ke Pad Class 9