What is the MATRIX?
Who is the lead actor in the MATRIX movie series ?
KEANU REEVES
To add or subtract the MATRICES A and B, what is essential about their dimensions ?
A and B are identical dimensions
The determinant of this MATRIX :
[ a b
c d ]
ad - bc
The linear equations below can be expressed as a matrix equation A.X = B
3x - 2y = 6
x + 2y = 4
What is the Matrix A ?
[ 3 -2
1 2 ]
Spell the Principal of DCC's surname
A-R-G-A-L-L
What is the name given to the values inside a matrix?
ELEMENTS
To multiply matrices A and B ,
what is a necessary requirement ?
the columns in A = the rows in B
If the determinant of a MATRIX = 0 , this MATRIX is known as ...
SINGULAR
If A.X = B, has a unique solution then...
det (A) is...
not ZERO
In the concert, the senior strings played a Star Wars theme from which film?
The FORCE AWAKENS
What is the names for the HORIZONTAL and VERTICAL arrays?
ROWS and COLUMNS
The product of
A = [ 2 3 ]
and
B = [ 1
4 ]
[ 14 ]
The inverse of the MATRIX is:
[ 2 3
2 4 ]
[ 2 -3/2
-1 1 ]
If 2A + B = C
then A =
0.5 (C - B)
S.M.C.S.I. is an acronym for what ?
Spesh Maths
Curiosity Sparked Investigation
[ 33 44
66 88 ]
a VAMPIRE MATRIX
When you multiply matrices A and B ,
which are [ 2 x 3 ] and [ 3 x 4 ]
what is the dimensions of the product matrix ?
[ 2 x 4 ]
The determinant of this MATRIX :
[ sin(x) cos(x)
- cos(x) sin(x) ]
1
If ax +by = m
and cx + dy = n
does NOT have a unique solution then...
These 2 lines are:
PARALLEL
What are the 4 new DCC Houses called ?
FLYNN / COOPER
CUTHBERT / BURROWS
When you multiply a square MATRIX by its INVERSE MATRIX, the product is the...
IDENTITY MATRIX
When the elements of the diagonal of a SQUARE MATRIX are 1s, and the rest are 0s, this is called an:
IDENTITY MATRIX
The inverse of the MATRIX exists for what values of b :
[ b 9
3 b ]
b = R / { - 3 sqrt3 , 3 sqrt3 }
If A . X = B
then X =
A-1 x B
Name 3 Maths Crimes
ANSWERS include:
Dividing by Zero / Square Rooting a Negative
Not Answering a Multi-Choice Question
Not Giving an Asymptote an Equation!
(... & stealing Joeys from a Kangaroos pouch!)