limx→∞7.3n+1+3.5n+15.3n-9.5n=

Ltx→∞7.3n+1+3.5n+15.3n-9.5n =Ltx→∞21.35n-3(5)535n-9 =0-150-9=53

limx→∞7.3n+1+3.5n+15.3n-9.5n=

Ltx→∞7.3n+1+3.5n+15.3n-9.5n =Ltx→∞21.35n-3(5)535n-9 =0-150-9=53

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$\lim_{x \to \infty} \frac{7 . 3^{n + 1} + 3 . 5^{n + 1}}{5 . 3^{n} - 9 . 5^{n}} =$

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$\frac{5}{3}$

$\frac{3}{5}$

$- \frac{3}{5}$

$- \frac{5}{3}$

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$\underset{x \to \infty}{Lt} \frac{7 . 3^{n + 1} + 3 . 5^{n + 1}}{5 . 3^{n} - 9 . 5^{n}} = \underset{x \to \infty}{Lt} \frac{21 . {(\frac{3}{5})}^{n} - 3 (5)}{5 {(\frac{3}{5})}^{n} - 9} = \frac{0 - 15}{0 - 9} = \frac{5}{3}$

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limx→∞7.3n+1+3.5n+15.3n-9.5n=

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$\lim_{x \to \infty} \frac{7 . 3^{n + 1} + 3 . 5^{n + 1}}{5 . 3^{n} - 9 . 5^{n}} =$