- if x=-1-3i is a root of f(x)=x^3+4x^2+14x+20, find all the other roots ( real and imaginary)?

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Two identical spheres experience charge F. Each lose 1/4 of initial charge. What is the electrostatic force on each one. Distance = constant? I want to find the value of k by this equation: Ct = C0. k. e^(-kt).
The values of Ct, C0 and t are known.
How should I solve this? I am keen to study further maths, but I have limited spare time. Are there any 'self study' or distance learning degrees besides the OU? #5 please? Don't understand how to get it with the steps? Is Dubois sea snake more venomous than an inland taipan?

Answer #1| 06/02 2014 19:4762 %