4. Poenostavi izraz $$ \frac{\sin 2 x-2 \sin x}{1+\cos 2 x-2 \cos x} $$

Question

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Calculate or simplify the expression $$ \frac{\sin(2x)-2\sin(x)}{1+\cos(2x)-2\cos(x)} $$.
Simplify the expression by following steps:
- step0: Solution:
  $$\frac{\sin\left(2xight)-2\sin\left(xight)}{1+\cos\left(2xight)-2\cos\left(xight)}$$
The simplified form of the expression $$ \frac{\sin 2x-2 \sin x}{1+\cos 2x-2 \cos x} $$ is $$ 	an(x) $$.
The expression simplifies to $$ 	an(x) $$.

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