Do the coding in R langauge and answers the following questions.

Exercise 3.2 a. Calculate the following: 1 21 [10 20 2 4 - 30 40 7 6 [50 60 b. Store these two matrices: Which of the following multiplications are possible? For those that are, compute the result. iii. BT - (A AT) iv. (A AT) BT v. [(B BT) (A AT) 10013-1 c. For 0 0 5 0 0 0 0 -1 confirm that A-1 , A-14 provides a 4 4 matrix of zeros