Use the result in Exercise 15 to determine the condition numbers of the nonsingular square matrices in

Question:

Use the result in Exercise 15 to determine the condition numbers of the nonsingular square matrices in Exercises 1 and 2.
In exercise
Show that if A is an n × n nonsingular matrix with singular values s1, s2, ..., sn, then the l2 condition number of A is K2(A) = (s1 / sn).