Vectors – Calculate cosine direction of vector with x-axis – Exercise 4512

Exercise

Vector a creates an angle

$\beta=60^{\circ}$

With y-axis, angle

$\gamma=120^{\circ}$

With z-axis and alpha angle with x-axis.

Calculate

$\cos\alpha$

Final Answer

\cos\alpha=\pm\frac{1}{\sqrt{2}}

Solution

Coming soon…

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