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Calculați: 29 ) lim x->-infinit 3,8 la puterea 7-x.Va rog


Calculați 29 Lim Xgtinfinit 38 La Puterea 7xVa Rog class=

Răspuns :

 

[tex]\displaystyle\bf\\\lim_{x\to-\infty}3,\!8^{7-x}=\lim_{x\to\infty}3,\!8^{7+x}=3,\!8^{7+\infty}=3,\!8^{\infty}=\boxed{\bf\infty}\\\\\\\implies\boxed{\bf\lim_{x\to-\infty}3,\!8^{7-x}=\infty}[/tex]