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Use tan(𝛉) = Y/X to find the direction angle 𝛉 of the vector. Apply arctan to both sides to solve for 𝛉. If your vector is in the second, third, or fourth quadrant, you’ll need to apply an
Better than just an application
Clarify mathematic equations
Decide mathematic tasks
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To find the direction cosines of the vector a is need to divided the corresponding coordinate of vector by the length of the vector: cos α = a x | a | ; cos β = a y | a | ; cos γ = a z | a |
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To solve a mathematical equation, you need to find the value of the unknown variable.
