if ||u||=1 and ||v||=5, and the vectors make angle of 130 and 180 respectively, find the component form of the sum of u and v.

Question

tkhunny · Answer

I'm going to guess that is has something to do with $\cos(130º) + 5\cos(180º)$.

anonymous · Answer

That is indeed the x to one of the possible solutions... though i doubt it is the answer.

tkhunny · Answer

Okay, can you write 'y' in a similar fashion?

anonymous · Answer

None that i can identify

anonymous · Answer

Try replacing cosine with sine for the vertical component.

anonymous · Answer

Was it seriously that easy... that is an answer...

anonymous · Answer

Dear god i over thought that too much.

tkhunny · Answer

Who cares if it is AN answer  Is it correct?

tkhunny · Answer

You could figure out that $\sin(180º) = 0$ and just skip that part.