Abstract: Helmholtz equation is a special kind of elliptic partial differential equation. Solving Helmholtz equation is often needed in many scientific and engineering problems. The efficient approach ...

Solve the equation \(4\sin x^\circ - 3 = 0\), where \(0 \le x \textless 360\). From the graph of the function, we can see that we should be expecting 2 solutions: 1 solution between \(0^\circ\) and ...

To solve trigonometric equations involving radian measure, you should proceed in the same way as for degrees. Use the diagram below to help you apply the necessary conditions. You should also know ...