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In Problems 1–16 use separation of variables to find, if possible, product solutions for the given partial differential equation.
7.
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Differential Equations with Boundary-Value Problems (MindTap Course List)
- A classical problem in the calculus of variations is to find the shape of a curve C such that a bead, under the influence of gravity, will slide from point A(0, 0) to point B(x,, y,) in the least time, as in the figure below. It can be shown that a nonlinear differential equation for the shape y(x) of the path is y[1 + (y')²] = k, where k is a constant. A(0, 0) bead mg B(x1, y1) Find an expression for dx in terms of y and dy. dx = Use the substitution y = k sin?(0) to obtain a parametric form of the solution. The curve Cturns out to be a cycloid. x(0) =arrow_forward5. Let 1 and 2 be two solutions of the differential equation y" +3 '+y'+q(x)y = 0, where q(x) is a continuous function on R such that 1(0) = 1,(0) = 0 and $2(0) = 0, $2(0) = 1. Suppose v(x) is a function defined on R such that $2(x) = v(x)1(x) for all x = R. (a) Show that ₁(x) = 0 for all x Є R. (b) Show that W($1,¢2)(x) = v'(x)$1(x)² = e¯*, where W(1,2) is the Wron- skian of 1 and 2.arrow_forwardDo question number 2 as soon as possiblearrow_forward
- 5. The motion of a mass attached to a dashpot and a spring as it experiences a force can be represented by m dx = -B dt d²x Em = m- dt2 Fg = -kx FB As the net force (F) is equal to 1, the following differential equation can be written: FB + Fm + Fx = 1 d²x dx m dt2 B - - kx = 1 dt Where m = 1, B = 1 and k = 6, Solve the above differential equation using the Laplace Transform method at the following initial conditions, x(0) = 0, x'(0) = 0.arrow_forwardThese are Exact deferential equation related problems.arrow_forward#10 onlyarrow_forward
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