- △ABC, CA•AB = a, AB•BC = b, BC•CA = c. prove [area] = (1/2)√(ab + bc + ca).?

Discover Questions

What's the amplitude of a driven oscillator if the frequency of the driver matches the natural frequency of the oscillator without friction? If you roll a red and a blue cube, what is the probability that they'll both be even? A 31.4-L volume of methane gas is heated from 25°C to 95°C at constant pressure. What is the final volume of the gas? ? Calculate the freezing point for a 2.82 m aqueous solution of NaCl. ? One piston in a hydraulic lift has an area that is twice the area of the other. When the pressure
at the smaller piston is increased by ∆p ?