\( \lim _{x \rightarrow \infty} x\left(\arctan \frac{x+1}{x+2}-\arc...

Описание

\( \lim _{x \rightarrow \infty} x\left(\arctan \frac{x+1}{x+2}-\arctan \frac{x}{x+2}\right) \) is equal to
\( \mathrm{P} \)
(A) \( \frac{1}{2} \)
(B) \( -\frac{1}{2} \)
(C) 1
(D) D.N.E
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