- #1

ChiralSuperfields

- 1,276

- 134

- Homework Statement
- Please see below

- Relevant Equations
- Coordinate form of vector

For (b) of this problem,

The solution is,

However, I am confused why the two parallel vectors are ##(\frac{2}{\sqrt{13}}, \frac{3}{\sqrt{13}})## and ## (-\frac{2}{\sqrt{13}}, -\frac{3}{\sqrt{13}}) ## should it not be ##(2,3)## and ##(-2,-3)##. Do somebody please know why they wrote that?

Also I am very confused with this notation

Many thanks!

The solution is,

However, I am confused why the two parallel vectors are ##(\frac{2}{\sqrt{13}}, \frac{3}{\sqrt{13}})## and ## (-\frac{2}{\sqrt{13}}, -\frac{3}{\sqrt{13}}) ## should it not be ##(2,3)## and ##(-2,-3)##. Do somebody please know why they wrote that?

Also I am very confused with this notation

Many thanks!