How do I do this question? I don’t think I have ever learnt this before.
#vectors
devout quest
prime yoke
The k component means the vector is in 3D
So for part a it’s just 3D Pythagoras
The length of a vector in 3D is sqrt(i component ^2+j component ^2+k component^2)
The unit vector is just 1/(magnitude) multiplied scaling all components of the original vector
Part c sketch a triangle with points O,D,C as corners and recognise that CD=CO+OD
Part d is the same method as part a except you are using a new vector (found in part c)
This should be enough hints
devout quest
This should be enough hints
Omg finally I understand it now. Thanks so much
prime yoke
No problem
clever tapir
How do I do this question? I don’t think I have ever learnt this before.
I believe this is yr13
prime yoke
Yes A2