Vectors

PlsHelp2604

New member
Joined
Jan 12, 2021
Messages
1
a = (1) and b = (3)
........(4)...................(2)

(a) Write down as a column vector
(i) a+b

A translation by ( ? )
( ? )
 

markraz

Full Member
Joined
Feb 19, 2014
Messages
312
column vector is like a column in excel add the two columns keeping the variable independent
is A 1,4 and B is 3,2?
if so it would look like this

1610465337953.png
 

Attachments

Subhotosh Khan

Super Moderator
Staff member
Joined
Jun 18, 2007
Messages
23,400
a = (1) and b = (3)
........(4)...................(2)

(a) Write down as a column vector
(i) a+b

A translation by ( ? )
( ? )
Is that your thought or was it included in the assignment?
 

HallsofIvy

Elite Member
Joined
Jan 27, 2012
Messages
7,040
If \(\displaystyle u= \begin{bmatrix} a \\ b \end{bmatrix}\) and \(\displaystyle v= \begin{bmatrix} c \\ d \end{bmatrix}\) then \(\displaystyle u+ v= \begin{bmatrix} a \\ b \end{bmatrix}+ \begin{bmatrix} c \\ d \end{bmatrix}= \begin{bmatrix} a+ c \\ b+ d \end{bmatrix}\)

I don't know what "A translation by (?)" means. It might be asking you to think of translating a by b.
 
Top