Chọn khẳng định đúng.

\(6,{79.10^{ - 5}}T\)

\(4,{4.10^{ - 5}}T\)

\(7,{6.10^{ - 5}}T\)

\(5,{78.10^{ - 5}}T\)

\(\lim {u_n} = 0\)       

\(\mathop {\lim }\limits_{n \to  + \infty } {u_n} = 0\)

\(\mathop {\lim }\limits_{n \to 0} {u_n} = 0\)          

\(\lim \left( {{u_n}} \right) = 0\)

\(\lim \dfrac{{{u_n} + 1}}{{3u_n^2 + 5}} = 1\) .

\(\lim \dfrac{{{u_n} + 1}}{{3u_n^2 + 5}} = 0\) .

\(\lim \dfrac{{{u_n} + 1}}{{3u_n^2 + 5}} = \dfrac{1}{3}\) .

\(\lim \dfrac{{{u_n} + 1}}{{3u_n^2 + 5}} =  + \infty \)

$\dfrac{1}{3}$

$\dfrac{258}{3}$

$\dfrac{256}{33}$

$\dfrac{794}{99}$

\(\lim {u_n} = 0\)

\(\lim {v_n} = 0\)       

\(\lim {u_n} - \lim {v_n} = 0\)           

Không tồn tại \(\lim {v_n}\)

\(\lim \dfrac{1}{{{2^n}}} = 0\)

\(\lim \dfrac{1}{{{3^n}}} = 0\)        

\(\lim \dfrac{1}{{0,{5^n}}} = 0\)     

\(\lim \dfrac{1}{{{{\left( {\sqrt 2 } \right)}^n}}} = 0\)