1103024310

SubArea: 
Points and Vectors
Level: 
A
Project ID: 
1103024310
Accepted: 
1
Clonable: 
0
Easy: 
0
The picture shows the triangle \( KLM \) with indicated vectors \( \vec{a} \), \( \vec{b} \), \( \vec{c} \) in a coordinate system. What are the vector coordinates \( \vec{b} \)? Express \( \vec{b} \) as a linear combination of \( \vec{a} \) and \( \vec{c} \).
\( \vec{b} = \left(1;3;4.5\right);\ \vec{b} = \frac12\vec{a} + \frac12\vec{c} \)
\( \vec{b} = \left(3;1;4.5\right);\ \vec{b} = \vec{a} + \vec{c} \)
\( \vec{b} = \left(1;3;4.5\right);\ \vec{b} = \vec{a} + \vec{c} \)
\( \vec{b} = \left(3;1;4.5\right);\ \vec{b} = \frac12\vec{a} + \frac12\vec{c} \)