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# fast help

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What's the matrix that rotates vectors by $$\pi/6$$ counterclockwise?

Feb 15, 2019

$$R(\theta) = \begin{pmatrix}\cos(\theta) &-\sin(\theta)\\ \sin(\theta) &\cos(\theta) \end{pmatrix}\\ \text{rotates a vector by }\theta \text{ in the counter clockwise direction}\\ \text{I leave you to determine }R\left(\dfrac{\pi}{6}\right)$$