Simplify cot(x2)−tan(x2)\cot(\frac{x}{2}) - \tan(\frac{x}{2})cot(2x)−tan(2x).
2cot(x)2\cot(x)2cot(x)
2csc(x)2\csc(x)2csc(x)
cot(x)\cot(x)cot(x)
csc(x)\csc(x)csc(x)