Search for: 3003010−3013011+…+30203030 is equal to 3003010−3013011+…+30203030 is equal to A 30C11B 60C10C 30C10D 65C55 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 A=3003010−3013011+3023012−…+30203030 or A=30C0⋅30C10−30C1⋅30C11+30C2⋅30C12−…+30C20⋅30C30 = Coefficient of x20 in (1+x)30(1−x)30= Coefficient of x20 in 1−x230= Coefficient of x20 in ∑r=030 (−1)r30Crx2r=(−1)10 30C10 [for coefficient of x20, let r=10=30C10=(−1)10 30C10 [for coefficient of x20, let r=10=30C10 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