Search for: If b is the first term of an infinite G.P. whose sum is five, then b lies in the interval : If b is the first term of an infinite G.P. whose sum is five, then b lies in the interval : A(−∞,−101)B(−10,0)C(0,10)D[10,∞) 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:Let b,br,br2,…… been infinite G.P. with first term b, common ratio r and sum = 5.∴5=b1−r;|r|<1⇒b5=1−r⇒r=1−b5Now, |r|<1⇒1−b5<1⇒−1<1−b5<1⇒0<−b5+2<2⇒0<10−b5<2⇒0<−b+10<10⇒b<10 and b>0 or b∈(0,10) Related content CBSE Class 11 English Core Writing and Grammar – Tenses Worksheet Top 10 Maths Project for Class 6 Class 10 Maths MCQs How to Download NTA NEET Admit Card 2024 Rashi And Nakshatra Quiz CBSE MCQ for Class 10 Science Genes – Definition, Structure, Diagram and its Types Octal to Binary Converter Km to cm Conversion mm to km Conversion