Search for: If A=x:x=n2,n=1,2,3, then number of proper subsets isIf A=x:x=n2,n=1,2,3, then number of proper subsets isA3B8C7DNone of these Register to Get Free Mock Test and Study Material +91 Verify OTP Code (required) I agree to the terms and conditions and privacy policy. Solution:Given that, A=x:x=n2,n=1,2,3={1,4,9}∴ Number of elements in A is 3.So, number of proper subsets =23−1=7Post navigationPrevious: If A, B are two sets, then A∪(B∩A)′ is Next: Let A={ϕ,{ϕ},{ϕ,{ϕ}}}, where ϕis a null set, then Related content JEE Main 2023 Question Papers with Solutions JEE Main 2024 Syllabus Best Books for JEE Main 2024 JEE Advanced 2024: Exam date, Syllabus, Eligibility Criteria JEE Main 2024: Exam dates, Syllabus, Eligibility Criteria JEE 2024: Exam Date, Syllabus, Eligibility Criteria NCERT Solutions For Class 6 Maths Data Handling Exercise 9.3 JEE Crash Course – JEE Crash Course 2023 NEET Crash Course – NEET Crash Course 2023 JEE Advanced Crash Course – JEE Advanced Crash Course 2023