Question

Express the following as an algebraic function of x.sin(arctan(2x) - arccos(2x))

Answer 1

In the case of a right triangle

`\tan (\theta)=(O)/(A),\cos \theta=(A)/(H)`

Then,

`\begin{gathered} \Rightarrow\theta=\arctan ((O)/(A)) \\ \text{and} \\ \theta=\arccos ((A)/(H)) \end{gathered}`

Therefore, in a diagram,