Vector Projection Question (1 Viewer)

popjin

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Where am I going wrong here?

Question:
Given vector u = (-4cos30, 4sin30) and vector v = (6cos45, -6sin45) find projuv (projection of v onto u) in exact form

Working:
IMG_20201227_120548.jpg
 

Etho_x

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Where am I going wrong here?

Question:
Given vector u = (-4cos30, 4sin30) and vector v = (6cos45, -6sin45) find projuv (projection of v onto u) in exact form

Working:
View attachment 29788
I see what you’ve done, that 16 caused you a bit of an error. You should be multiplying by 1/16 (remember your fraction laws : 0)
 

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