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Use the dot product to find |v| when v=(2,7)

Use the dot product to find |v| when v=(2,7)
asked 199k views
3 votes
Use the dot product to find |v| when v=(2,7)

asked
User Alex Salom
by
7.7k points

2 Answers

6 votes

Answer:

D

Explanation:

edge answer

answered
User Alessandro Oliveira
by
7.5k points
5 votes
We have that v*v=
|v|^2. Hence, v*v= (2,7)*(2,7)=2*2+7*7=53. Thus,
|v|^2=53 and |v|= √(53). The correct choice is d.
answered
User Mara Morton
by
8.3k points
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