Class-11-Math Set #25: Tools we absolutely need before solving real-world sets problems

In this video, we learn the two following absolutely must-know formulas when it comes to solving real-world sets problems: 1. number of elements (A union B) = number of elements (A) + number of elements (B) - number of elements (A intersection B) 2. number of elements (A union B union C) = number of elements (A) + number of elements (B) + number of elements (C) - number of elements (A intersection B) - number of elements (B intersection C) - number of elements (C intersection A) + number of elements (A intersection B intersection C) Cheers, https://risingpearl.com Union of sets: https://youtu.be/fhyxYk1zQsU Intersection of sets: https://youtu.be/fCRNtpK8NLs Difference of sets: https://youtu.be/5qtHgB2UUvQ Complement of sets: https://youtu.be/tU19evZZKFQ Sets Problem-set 1: https://risingpearl.com/class-11-math/sets/sets-problem-sets/set-problem-set-1/ Sets Problem-set 2: https://risingpearl.com/class-11-math/sets/sets-problem-sets/sets-problem-set-2/ Sets Problem-set 3: https://risingpearl.com/class-11-math/sets/sets-problem-sets/problem-set-3-on-sets/ Sets Problem-set 4: https://risingpearl.com/class-11-math/sets/sets-problem-sets/problem-set-4-on-sets/ Sets Problem-set 5: https://risingpearl.com/class-11-math/sets/sets-problem-sets/problem-set-5-on-sets/ Sets Problem-set 6: https://risingpearl.com/class-11-math/sets/sets-problem-sets/problem-set-6-on-sets/ Sets Problem-set 7: https://risingpearl.com/class-11-math/sets/sets-problem-sets/problem-set-7-on-sets/