Let matrices a, b represent complex numbers. answer the following questions.
a. let a = −b
b a
and b = −
c
show a= b through matrix multiplication.
b. would you expect a = c for any matrix c? explain.
c. let c be any 2 × 2 matrix,
x y
z show a ≠ c through matrix multiplication.
d. summarize your results from problems 3 and 4.

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?

Which of these would have been most likely to have been a carpetbagger during the reconstruction era? a) a new york businessman who relocated to mississippi b) a former slave who was able to buy land in birmingham c) a carolina-born politician who supported the democratic d) a former confederate officer who owned a farm in memphis eliminate