-e^(-m * x) * ((a * n + b * m) * sin(n * x) + (a * m - b * n) * cos(n * x)) = 0
You asked:
Investigate the equation: \(-{e}^{-m \cdot x} \cdot \left(\left(a n + b m\right) \cdot \sin\left( n x \right) + \left(a m - b n\right) \cdot \cos\left( n x \right)\right) = 0\).