Learn how to solve problems step by step online. sin(2x)cot(x)-cos(2x). Applying the trigonometric identity: \cot\left(\theta \right) = \frac{\cos\left(\theta \right)}{\sin\left(\theta \right)}. Wenden Sie die Formel an: a\frac{b}{c}=\frac{ba}{c}, wobei a=\sin\left(2x\right), b=\cos\left(x\right) und c=\sin\left(x\right). Anwendung der trigonometrischen Identität: \sin\left(x\right)\cos\left(y\right)=\frac{\sin\left(x+y\right)+\sin\left(x-y\right)}{2}. Wenden Sie die Formel an: \frac{\frac{a}{b}}{c}=\frac{a}{bc}, wobei a=\sin\left(3x\right)+\sin\left(x\right), b=2, c=\sin\left(x\right), a/b/c=\frac{\frac{\sin\left(3x\right)+\sin\left(x\right)}{2}}{\sin\left(x\right)} und a/b=\frac{\sin\left(3x\right)+\sin\left(x\right)}{2}.

sin(2x)cot(x)-cos(2x)