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1.
A pendulum is connected to a rope 3 m long, which is connected to a ceiling 4 m high. The angle between
its widest swing and vertical hanging position is . If the pendulum swings out to its widest position in 2 seconds,
model the height of the pendulum using a cosine function, considering vertical to be t= 0.
4]
b.
Determine a sine function that models this situation.

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