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  1. D

    First order differential equation

    Homework Statement Hi, If x^2+1=y/(x-y'), where y'=dy/dx, find dy/dx I have tried so many ways, but I cannot seem to get the correct answer. The answers I have got previously are: i) x² + 1 = y/(x - y') (x² + 1)(x - y') = y x(x² + 1) - y'(x² + 1) = y x(x² + 1) - y = y'(x² + 1)...
  2. D

    Help with Heaviside equations

    Homework Statement g(x) = [ x^2 + 2 if x<=1 & x + 2 if x>1, I am asked to find the left and right limits, and whether the g(x) is continuous or not. Homework Equations The Attempt at a Solution When I draw the two equations, I get a hyperbola and a line of gradient 1. They...
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