For Exercises 53-64, (See Examples 6-7) a. Find AB if possible. b. Find BA if possible. c. Find A 2 ifpossible. (Hint: A 2 = A ⋅ A .) 57. A = [ -9 2 3 -1 5 4 0 1 7 ] and B = [ -1 5 0 ]
For Exercises 53-64, (See Examples 6-7) a. Find AB if possible. b. Find BA if possible. c. Find A 2 ifpossible. (Hint: A 2 = A ⋅ A .) 57. A = [ -9 2 3 -1 5 4 0 1 7 ] and B = [ -1 5 0 ]
Solution Summary: The author explains how the order of a matrix is determined by the number of rows and columns.
For Exercises 53-64, (See Examples 6-7) a. Find AB if possible. b. Find BA if possible. c. Find A2ifpossible. (Hint:
A
2
=
A
⋅
A
.) 57.
A
=
[
-9 2 3
-1 5 4
0 1 7
]
and
B
=
[
-1
5
0
]
Answer the number questions with the following answers
+/- 2 sqrt(2)
+/- i sqrt(6)
(-3 +/-3 i sqrt(3))/4
+/-1
+/- sqrt(6)
+/- 2/3 sqrt(3)
4
-3 +/- 3 i sqrt(3)
1
Matching 10 points
Factor and Solve
1)x3-216 0, x = {6,[B]}
2) 16x3 = 54 x-[3/2,[D]]
3)x4x2-42 0 x= [ +/-isqrt(7), [F] }
4)x+3-13-9x x=[+/-1.[H]]
5)x38x2+16x=0, x = {0,[K}}
6) 2x6-10x-48x2-0 x-[0, [M], +/-isqrt(3))
7) 3x+2x²-8 x = {+/-i sqrt(2), {Q}}
8) 5x³-3x²+32x=2x+18 x = {3/5, [S]}
[B]
[D]
[F]
[H]
[K]
[M]
[Q]
+/-2 sqrt(2)
+/- i sqrt(6)
(-3+/-3 i sqrt(3))/4
+/- 1
+/-sqrt(6)
+/- 2/3 sqrt(3)
4
-3 +/- 3 i sqrt(3)
[S]
The only problems I need help with ae the last 8 ones, Thanks
Chapter 10 Solutions
College Algebra & Trigonometry Student Solutions Manual
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