t we have completed analysis tasks, I would like to revisit math necessary to comprehend the rest of the Cs topics you will be encountering ons. I do not erstand Each group of 3 people should write down their answers to the following questi want references to some mathematical theorem. I want your own easy to und oxplanations that would make sense even to & year olds PRINT NARAE 1. We have learned that Sum of K as K varies from 1 to N is 1+2+3 N NIN 1)/2 Why do "you think it is NIN+1)/2? Explain. (Hint: draw bar graphs within a rectangle) 2. We have learned that there are N(N-1)/2 pairs when you have N elements. Why do "you" think it is N(N-1) /2? Explain, (Hint: draw dots and pair them up with lines) We have learned that there are AAN ways to assign one of A values to each of the N people. Why do "you" think it is AAN? Explain. 3