SOLUTION: given a=2i-j+2k and b=i+3j-2k, find a) the cosine of the angle between the two vectors b) |axb|

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Question 921219: given a=2i-j+2k and b=i+3j-2k, find
a) the cosine of the angle between the two vectors
b) |axb|
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!


Also, where theta is the angle in between vectors a and b.

Find the magnitude of a and b, solve for theta and you're done.

Then use the fact that and find .