The data is a little bit complex,but you can use the knowledge of vector in the subject of algebra,or you can ultimate the basic Euclidean knowledge,like cosine theorem.In detail,you can list two equation with two variable,and get the answer.but i don't finish calculating it.
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Answer:
1 and 10
Step-by-step explanation:
Simplifying makes a algebric expression easily understandable and solvable.
