\[
\lim _{x \rightarrow \infty}\left(\sqrt{4 x^{2}+x}-\sqrt{\frac{4 x^{3}}{x+2}}\right)
\]
(a) \...
\[
\lim _{x \rightarrow \infty}\left(\sqrt{4 x^{2}+x}-\sqrt{\frac{4 x^{3}}{x+2}}\right)
\]
(a) \( -9 / 4 \)
(b) \( 9 / 2 \)
(c) \( 9 / 4 \)
(d) \( 4 / 9 \)
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