Trigonometry
Which of the following statements correctly describes the procedure for obtaining the graph of y=cos(x−π12)y=\cos\left(x-\frac{\pi}{12}\right)y=cos(x−12π)from the graph of y=cosxy=\cos xy=cosx ?
Translate the graph of y=cosxy=\cos xy=cosx by π12\frac{\pi}{12}12π unit to the right.
Translate the graph of y=cosxy=\cos xy=cosx by π12\frac{\pi}{12}12π unit to the left.
Stretch the graph of y=cosxy=\cos xy=cosx vertically by a factor of 121212.
Reflect the graph of y=cosxy=\cos xy=cosx across the x-axis and translate it by π12\frac{\pi}{12}12π unit upward.