You answer this problem bye cost i already got my answer though thanks for trying...
Dot product is
a*b = |a|*|b|*cosα.
In our case
u*u =|u|*|u|*cos 0
u*u =|u|*|u|
12=|u|²
|u|=√12=√(4*3)=2√3
Answer: <span>D. 2√3</span>
Answer:
0.1785
Step-by-step explanation:
Answer:
n = -2
Step-by-step explanation:
