Search for: Let a1,a2,a3,…………….a49be in A.P. such that∑k=012 a4k+1=416 and a9+a43′=66 ,a12+a22+…………+a172=140m then m is equal to Let a1,a2,a3,…………….a49be in A.P. such that∑k=012 a4k+1=416 and a9+a43′=66 ,a12+a22+………...+a172=140m then m is equal to A33B66C68D34 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:∑k=012 a4k+1=416⇒a1+a5+…+a49=416 ⇒132a1+a49=416As a49=a1+48d so we have1322a1+48d=416⇒a1+24d=32 …………………... (i) Given, a9+a43=66⇒a1+8d+a1+42d=66⇒a1+25d=33 …………………………….…(ii)The equation (i) and (ii) gives a1=8,d=1Now, a12+a22+…..+a172=82+92+….+242=12+22+…..+242−12+22+….+72=24⋅25⋅496−7⋅8⋅156=4760=34(140)∴ m=34 Related content Nucleus Diagram for Class 9 Neuron Diagram Class 9 Human Heart Diagram Class 10 CBSE Class 7 Science Chapter 1 Nutrition in Plants MCQ Questions with Answers CBSE Class 9 English Worksheet – The Road not Taken 50+ GK Questions and Answers for Class 8 “Kabir Ki Sakhiyan” MCQ Questions for Class 9 Hindi with Answers Kshitij, Kritika, Sparsh, Sanchayan Bhag 1 CBSE Class 7 English Honeycomb Chapter 1 Three Questions MCQ Questions with Answers CBSE Class 9 English Beehive Book Poem 1 The Road Not Taken MCQ Questions with Answers MCQs Questions with Answers for Class 9 English Chapter 1 The Fun They Had