You can only unlock the chapter using a special code that we will send you via the Viber app. Receiving a message is free of charge and with no obligations.
My phone number:
Get a code
In compliance with the law, persons under the age of 15 can enter their phone number only in the presence of a parent or guardian.
4-character (Viber) code:
Check the received code
The page will be refreshed automatically in a few seconds.
To ensure the proper functioning of the website, OpenProf uses cookies that do not store personal data. By continuing to use the website, you agree to cookies. Tell me more »
in the direction of the vector 
if 
and 
.
and 
determine the points A, B and C. The point S should be the midpoint of the line AC and the point T the midpoint of the line BC. Use the vectors 
and 
to find out the following vectors:
in the direction of the vector 
if 
and 
.
and 
are given. Express all vectors with the vectors 
and 
. What do the vectors 
and 
:
and angle 
and move the triangle parallel to the vector 
, where B' is the midpoint of the side AC.
.
and you get the parallelogram A'B'C'D'.
.
and 
to write the vector 
.
and 
enclosing as 
.
and 
to write the vector
.
and 
to write the vector 
and 
to write the vector 
