Types of Matrices

What do m, n, p and q equal in this scalar matrix multiplication?

• m=8, n=9, p=-4, q=4 
• m=15, n = -45, p=20, q=-5
• m=20, n=-5, p=15, q=-45
• m=-5, n=20, p=-45, q=15

Tags

CCSS.HSA.APR.A.1

Multiply

• 20     15    -10
  30     -5         0
• -20      15     -10
  30     -5          0
• 1        8       3
  11     4        5
• 20     -15     10
  -30         5        0  

Tags

CCSS.HSA.APR.A.1

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

Tags

CCSS.HSN.VM.C.6

CCSS.HSN.VM.C.8

In Matrix R (pictured) what element is in the second row, third column?

• 8
• 9.01
• 6
• 1

Tags

CCSS.HSN.VM.C.6

• symmetrtic

• skew-symmetric

• Hermitian

• None

1. If A is a skew-symmetric matrix, then a_ii =?

• 0

• 1

• i

• None

1. A given matrix is Hermitian when----------

• A' = -A

• A'=A

• 
• None

 $\left|A\right|$ =  ?     when  A is an orthogonal matrix

•  $\pm i$  

•  $\pm1$  

• 0

• None