castrol7720 castrol7720

26-01-2024
Mathematics

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Find the standard matrix of the linear transformation

T. R² -> R² rotates points (about the origin) through 3/4π radians (with counterclockwise rotation for a positive angle).

A. [ -1 -1 ]
[ 1 -1 ]

B. [ -√3/3 - √3/3 ]
[ √3/3 -√3/3 ]

C. [ -√2/2 - √2/2 ]
[ √2/2 - √2/2 ]

D. [ √2/2 - √2/2 ]
[ √2/2 - √2/2 ]

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