Rain English Lyrics, South Africa Benjamin, Dube 25 Comments. Refrain: Jehovah is your name x2. Mighty warrior, great in battle. Jehovah is your name. (Repeat) Mighty warrior, great in battle. Jehovah is your name.
Best Answer: You're wrong about what the arctan function is. arctan is that function that answers the question, What angle theta yields the tan (theta) = x? arctan 0 = 0 because the tan 0 = sin 0 / cos 0 = 0/1 = 0.
Since $\lim\limits_{x\to0}\arctan(x)=0$, letting $x=\tan(\theta)$ yields $$ \lim_{x\to0}\frac{\arctan(x)}{x}=\lim_{\theta \to0}\frac{\theta}{\tan(\theta)}\tag{1} $$ and $(1)$ is shown to be $\frac11$ in equation $(5)$ of this answer.