A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
Consider the following vectors.
v = 9i + 2j, w = 4i + 3j
(a) Find the dot product v·w.
v·w =
(b) Find the angle between v and w. Give your answer in degrees, and round it to 2 decimal places.
Angle between v and w =
State whether the vectors are parallel, orthogonal, or neither.
anonymous
 5 years ago
Consider the following vectors. v = 9i + 2j, w = 4i + 3j (a) Find the dot product v·w. v·w = (b) Find the angle between v and w. Give your answer in degrees, and round it to 2 decimal places. Angle between v and w = State whether the vectors are parallel, orthogonal, or neither.

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0dot product = (9 x 4 ) + (2 x 3 ) = 36 +6 =42

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0length of u = u = sqrt ( 9^2 +2^2} = sqrt( 85) w = sqrt( 4^2 +3^3) = 5

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0a . b = abcos(A) where A is the angle between them

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[A= \cos^{1} \frac{a.b}{ab}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the rest is calculator work

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol is it orthogonal or parralel or neither?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0most likely neither , you have to calculate A

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0for orthonal A=90degrres, for parallel A=0 and otherwise its nither

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Sweet. It must be neither then.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the slope of the vectors tell you if they are // or L or neither right? 3/4 and 2/9

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0in R^3 space, the dot is easier to tell the relationship between vectors; but in the plane? y/x is the slope of a vector :)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.