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Hi i have this problem but im not very good with this type of excercise.
Do you know trigonometric functions?
Yes
Try to write down, what are given to us
Ok
You need to find alpha
What trig function will come handy in here?
Cosine?
No
Cos = adjacent side / hypotenuse
You don't have hypotenuse here
Use the func that'll use all the given things in your question
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