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Find the complement of the angle 3pi/7. Please show steps!? If a+b+c=4, ab+ac+bc=6, and abc=3, what is 1/a + 1/b + 1/c? Find all of the actual roots of the polynomial: x^3 - 2x^2 + 5x + 26 = 0? An action potential can be referred as a ¨wave of depolarization¨ down the axon. Explain what you think this means.? Find all solutions to the following system of nonlinear equations.
(x − 2)^2 + y ^2 = 20
(x + 2)^2 + y^ 2 = 20?