Find the direction cosines and angles of u and show that cos^2 𝛼 + cos^2 𝛽 + cos^2 𝛾 = 1. u= i + 8j + 4k?
I got 83.6, 63.6 & 27.3 for the direction cosines (respectively) and they were all wrong :( please help!
- rotchmLv 71 month ago
Show us how you got those values.
Then, unanon yourself. It's very impolite to be anonymous here. You should know that. Then, we will take it from there.