Cosine word problem equation....sinusoidal word problem...please help!?
One complete pushup takes 3 seconds.The student starts the pushup at 20 inches and finishes the pushup at 3 inches. Write a cosine/sine equation(curve equation) modeling this. I am having a hard time finding the period. Can you please help me find the equation. It would be nice if you showed the steps also. Thanks!
