Problem 2 [40 points] For the floating pointsstm 2,5,-5,7) A. Find the largest and smallest positive numbers in the system. B. what is the rounding unit? C.Convert the decimal number -45 to a binary number and find z) by both chopping and rounding. D. Estimate the absolute error and relative error between r and f(z) by chopping and rounding (use the Theorem on Floating point representation error)