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OpenStudy (anonymous):
consider the following vectors A=4i+4j, B=5i -2j Calculate the angle between the vectors A and B (i have an answer but is not the same as my teachers answer (not even in the ball park) just want to see what you guys get...
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OpenStudy (anonymous):
use dot product
OpenStudy (anonymous):
v . w = ||v|| ||w|| cos q
OpenStudy (anonymous):
Find the magnitude of A and B. ||A||=sqrt(32) ||B||=sqrt(29) A (dot) B=12 So: cos(x)=12/(sqrt(32)sqrt(29)) Solve for x.
OpenStudy (anonymous):
I got 66.8 degrees.
OpenStudy (anonymous):
Yea that's right thanks I'll medal you when I get to my comp
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