1103030505

SubArea: 
Points and vectors
Level: 
B
Project ID: 
1103030505
Accepted: 
1
Clonable: 
0
Easy: 
0
The vectors u→ and v→ are given by the figure. Find cosine of the angle φ between u→ and v→. Help: Use the dot product of the given vectors.
cos⁡φ=−917
cos⁡φ=917
cos⁡φ=17213
cos⁡φ=−17213