AIR MATH

Math Question

Choose the function whose graph is given by: A. \( y=-3 \cos (4 x) \) B. \( y=3 \cos \left(\frac{1}{1} x\right) \) C. \( y=3 \cos \left(\frac{\pi}{2} x\right) \) D. \( y=3 \cos (4 x) \)

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