a) If A and B are 5 x 5 matrices such that AB = -BA, then AB is singular. b) If (AB)? = A²B², then AB = c) If A is ann X n matrix such that A² |C1 + 2a1 bị a1 = |C3 + 2a3 b3 az |c2 + 2a2 b2 az ВА. 0, then (I – A)-1 = I + A. |a1 a2 az d) b1 b3 b3 |C1 C2 C3 e) The vector (1,2,0,4) is a linear combination of the vectors (1,0,1,2), (2,0,2,3) and (3,0,2,2).

Find, if possible, (a) AB and (b) BA.

Jordan and Amari run a 200-meter race, and Jordan wins by 13 meters. They decide to run the 200-meter race again with Jordan starting 13 meters behind the starting line. Find the correct answer to each of the following parts (a) through (d). O A. Jordan wins the second race because Jordan can run a longer distance in a longer amount time. O B. Amari wins the second race because Amari has a shorter distance to run. O C. Amari wins the second race because Jordan is not fast enough to be able to catch up in time. OD. Jordan wins the second race because Jordan can run a longer distance in a shorter amount of time. b. Suppose Jordan starts 8 meters behind the starting line in the second race. Who wins the race? O A. Amari wins the second race because Amari has a shorter distance to run. O B. Jordan wins the second race because Jordan can run faster than Amari. O C. Amari wins the second race because Jordan is not fast enough to be able to catch up in time. O D. Jordan wins the second race…

so are the values for both questions -44?