please answer the following question

1. (1.5 points) Let A = 1 0 11 46259 - 0 0 . Let B = -2 1 Simplify AA' + 2B as much as possible. [CU20PS05-46259] 2. (1.5 point) Let A = 46259 Find A using the method described in Part 2 of Week 6. Show your work and specify all entries as fractions, not decimals. (Note that using any other method will result in 0 point for the question.) [CU20PS05-46259] 11 46259 2 3. (1 point) Let A = 0 6 What is the (1, 2)-entry of A? Justify your answer. [CUZOPS05-46259]