1)Come up with a real-world problem in which only the best solution will do (example, only the exact right answer). Then come up with a real-world problem in which a solution that is approximately the best is good enough. a)Do exercises 1.2-2, 2.1-2 b)On the first birthday, we light one candle; on the second birthday 2 candles, and on the 120th birthday 120 candles. How many candles do we light total in all 120 birthdays? Use the proper summation formula