Applying the trigonometric identity: $\cot\left(\theta \right) = \frac{\cos\left(\theta \right)}{\sin\left(\theta \right)}$

Wenden Sie die Formel an: $\frac{a}{\frac{b}{c}}$$=\frac{ac}{b}$, wobei $a=\tan\left(q+a\right)$, $b=\cos\left(b+q\right)$, $c=\sin\left(b+q\right)$, $a/b/c=\frac{\tan\left(q+a\right)}{\frac{\cos\left(b+q\right)}{\sin\left(b+q\right)}}$ und $b/c=\frac{\cos\left(b+q\right)}{\sin\left(b+q\right)}$

Anwendung der trigonometrischen Identität: $\frac{\sin\left(\theta \right)}{\cos\left(\theta \right)}$$=\tan\left(\theta \right)$, wobei $x=b+q$