Please help me for part c how to do part c of this questions
The equation h = 7 cos (pi/3 t) models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched and then released.
a. Solve the equation for t.
b. Find the times at which the weight is first at a height of 1 cm, of 3 cm, and of 5 cm above the rest position. Round your answers to the nearest hundredth.
c. Find the times at which the weight is at a height of 1 cm, of 3 cm, and of 5 cm below the rest position for the second time. Round your answers to the nearest hundredth.
Stacey Warren - Expert brainly.com
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In your shoes one of the first things I'd do would be to graph the given function on the interval [0, 10]. such a graph would enable you to estimate the required times. Then I'd use trig to calculate those times more accurately.