Question: 2.5 The Chain Rule (e) f(x) = cos(sini) 2. The voltage across an electrical circuit after t milliseconds is given by V(t) = 120 cos(0.4t)

2.5 The Chain Rule (e) f(x) = cos(sini) 2. The voltage

2.5 The Chain Rule (e) f(x) = cos(sini) 2. The voltage across an electrical circuit after t milliseconds is given by V(t) = 120 cos(0.4t) volts. After 2 milliseconds, what is the voltage across the circuit and how fast is it changing? Make it clear which answer is which, and include the correct units with each

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