- Limit as x approaches 0 of x^x^x?

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What relation of the Earth’s magnetic field to the Earths enables geologists to determine the latitudinal position of various plates in past? What are the reasons for the changes in voltage from the moment after the capacitor is discharged until the voltage is constant.? Calculate the pH of a solution that is 0.100 M in hydrofluoric acid and 0.100 M in sodium fluoride. Ka of hydrofluoric acid is 6.3 x 10-4? (3x-2)(x+4)=3x^2+10x-8
are (3x-2) and (x+4) called the "roots" or "factors"? Astronomy: Are the Van Allen belts, the Ionosphere, and the Heaviside layer all different names for the same thing?