One x, two x, three x
Geometry
Level
3
If \(\sin {x} = -13\cos{x}\). Then, the value of
\(\begin{align} \frac{\sin {x} + \sin{2x} + \sin{3x}}{\cos{x}+\cos{2x}+\cos{3x}} \end{align}\)
can be expressed in the form \(\frac{a}{b}\), where \(a\) and \(b\) are positive coprime integers. What is the value of \(a+b\)?
by
Ryan Phua