Equation f(t) = 7 + 5sin(0,5t - 1)?

Question

The water depth variation is a function of the time t, which can be expressed with the equation f (t) = 7 + 5sin(0,5t - 1)

1) Find the deepest and lowest water depth, according to the equation.

2) Find f ’(t) and the speed the water depth changes, when the t=12

How do I do that. Please explain me it.

Answer 1

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