- A1A2A3 . . . An is a regular n-gon. Prove that angle A2A1A4 = 360°/n?

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What is the range of this function and how do you find it? The function is f(n) = √(4-n^4)? How can we eradicate cholera in our communities? A position given by:
r = [2.0m+(5.0m/s)t] i + [3.0-(1.0m/s^2)t^2] j,
What is the magnititude of the acceleration of the object at time t=2s? A car traveling 34 mi/h accelerates uniformly
for 6.3 s, covering 557 ft in this time.
What was its acceleration? Answer in ft/s .? Hi Everyone ,
I have a problem with the high pressure pump and also the motor (fresh water) water plant that it have high vibration from?