Answer
Aquí están los resultados de los límites:
1. \( \lim_{x \rightarrow 2}\left(\frac{x^{3}+2 x+3}{x^{2}+5}\right) = \frac{5}{3} \)
2. \( \lim_{x \rightarrow -1}\left(\frac{2 x+1}{x^{2}-3 x+4}\right) = -\frac{1}{8} \)
3. \( \lim_{x \rightarrow -3}\left(\frac{x^{2}-9}{2 x^{2}+7 x-3}\right) = 0 \)
4. \( \lim_{x \rightarrow 4}\left(\frac{x^{2}-4 x+1}{3 x^{2}-2 x+1}\right) = \frac{1}{41} \)
5. \( \lim_{x \rightarrow 0}\left(\frac{x^{2}-3 x}{x+1}\right) = 0 \)
6. \( \lim_{x \rightarrow 1}\left(\frac{4 x-1}{2 x^{2}-3 x+4}\right) = 1 \)
7. \( \lim_{x \rightarrow 3}\left(\frac{3 x^{2}-1}{4 x^{2}+2}\right) = \frac{13}{19} \)
8. \( \lim_{x \rightarrow -5}\left(\frac{x^{3}-5}{3 x^{3}+x^{2}-5}\right) = \frac{26}{71} \)
9. \( \lim_{x \rightarrow 0}\left(\frac{x^{3}-4 x^{2}+x-1}{2 x^{2}+4 x-1}\right) = 1 \)
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Solution
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow 4}\left(\frac{x^{2}-4x+1}{3x^{2}-2x+1}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow 4}\left(x^{2}-4x+1\right)}{\lim _{x\rightarrow 4}\left(3x^{2}-2x+1\right)}\)
- step2: Calculate:
\(\frac{1}{\lim _{x\rightarrow 4}\left(3x^{2}-2x+1\right)}\)
- step3: Calculate:
\(\frac{1}{41}\)
Calculate the limit \( \lim_{x \rightarrow 1}\left(\frac{4 x-1}{2 x^{2}-3 x+4}\right) \).
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow 1}\left(\frac{4x-1}{2x^{2}-3x+4}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow 1}\left(4x-1\right)}{\lim _{x\rightarrow 1}\left(2x^{2}-3x+4\right)}\)
- step2: Calculate:
\(\frac{3}{\lim _{x\rightarrow 1}\left(2x^{2}-3x+4\right)}\)
- step3: Calculate:
\(\frac{3}{3}\)
- step4: Calculate:
\(1\)
Calculate the limit \( \lim_{x \rightarrow 3}\left(\frac{3 x^{2}-1}{4 x^{2}+2}\right) \).
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow 3}\left(\frac{3x^{2}-1}{4x^{2}+2}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow 3}\left(3x^{2}-1\right)}{\lim _{x\rightarrow 3}\left(4x^{2}+2\right)}\)
- step2: Calculate:
\(\frac{26}{\lim _{x\rightarrow 3}\left(4x^{2}+2\right)}\)
- step3: Calculate:
\(\frac{26}{38}\)
- step4: Calculate:
\(\frac{13}{19}\)
Calculate the limit \( \lim_{x \rightarrow 0}\left(\frac{x^{3}-4 x^{2}+x-1}{2 x^{2}+4 x-1}\right) \).
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow 0}\left(\frac{x^{3}-4x^{2}+x-1}{2x^{2}+4x-1}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow 0}\left(x^{3}-4x^{2}+x-1\right)}{\lim _{x\rightarrow 0}\left(2x^{2}+4x-1\right)}\)
- step2: Calculate:
\(\frac{-1}{\lim _{x\rightarrow 0}\left(2x^{2}+4x-1\right)}\)
- step3: Calculate:
\(\frac{-1}{-1}\)
- step4: Calculate:
\(1\)
Calculate the limit \( \lim_{x \rightarrow -1}\left(\frac{2 x+1}{x^{2}-3 x+4}\right) \).
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow -1}\left(\frac{2x+1}{x^{2}-3x+4}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow -1}\left(2x+1\right)}{\lim _{x\rightarrow -1}\left(x^{2}-3x+4\right)}\)
- step2: Calculate:
\(\frac{-1}{\lim _{x\rightarrow -1}\left(x^{2}-3x+4\right)}\)
- step3: Calculate:
\(\frac{-1}{8}\)
- step4: Calculate:
\(-\frac{1}{8}\)
Calculate the limit \( \lim_{x \rightarrow 2}\left(\frac{x^{3}+2 x+3}{x^{2}+5}\right) \).
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow 2}\left(\frac{x^{3}+2x+3}{x^{2}+5}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow 2}\left(x^{3}+2x+3\right)}{\lim _{x\rightarrow 2}\left(x^{2}+5\right)}\)
- step2: Calculate:
\(\frac{15}{\lim _{x\rightarrow 2}\left(x^{2}+5\right)}\)
- step3: Calculate:
\(\frac{15}{9}\)
- step4: Calculate:
\(\frac{5}{3}\)
Calculate the limit \( \lim_{x \rightarrow -5}\left(\frac{x^{3}-5}{3 x^{3}+x^{2}-5}\right) \).
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow -5}\left(\frac{x^{3}-5}{3x^{3}+x^{2}-5}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow -5}\left(x^{3}-5\right)}{\lim _{x\rightarrow -5}\left(3x^{3}+x^{2}-5\right)}\)
- step2: Calculate:
\(\frac{-130}{\lim _{x\rightarrow -5}\left(3x^{3}+x^{2}-5\right)}\)
- step3: Calculate:
\(\frac{-130}{-355}\)
- step4: Calculate:
\(\frac{26}{71}\)
Calculate the limit \( \lim_{x \rightarrow 0}\left(\frac{x^{2}-3 x}{x+1}\right) \).
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow 0}\left(\frac{x^{2}-3x}{x+1}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow 0}\left(x^{2}-3x\right)}{\lim _{x\rightarrow 0}\left(x+1\right)}\)
- step2: Calculate:
\(\frac{0}{\lim _{x\rightarrow 0}\left(x+1\right)}\)
- step3: Calculate:
\(\frac{0}{1}\)
- step4: Calculate:
\(0\)
Calculate the limit \( \lim_{x \rightarrow -3}\left(\frac{x^{2}-9}{2 x^{2}+7 x-3}\right) \).
Evaluate the limit by following steps:
- step0: Evaluate the limit:
\(\lim _{x\rightarrow -3}\left(\frac{x^{2}-9}{2x^{2}+7x-3}\right)\)
- step1: Rewrite the expression:
\(\frac{\lim _{x\rightarrow -3}\left(x^{2}-9\right)}{\lim _{x\rightarrow -3}\left(2x^{2}+7x-3\right)}\)
- step2: Calculate:
\(\frac{0}{\lim _{x\rightarrow -3}\left(2x^{2}+7x-3\right)}\)
- step3: Calculate:
\(\frac{0}{-6}\)
- step4: Calculate:
\(0\)
Aquí están los límites calculados:
1. \( \lim_{x \rightarrow 2}\left(\frac{x^{3}+2 x+3}{x^{2}+5}\right) = \frac{5}{3} \)
2. \( \lim_{x \rightarrow -1}\left(\frac{2 x+1}{x^{2}-3 x+4}\right) = -\frac{1}{8} \)
3. \( \lim_{x \rightarrow -3}\left(\frac{x^{2}-9}{2 x^{2}+7 x-3}\right) = 0 \)
4. \( \lim_{x \rightarrow 4}\left(\frac{x^{2}-4 x+1}{3 x^{2}-2 x+1}\right) = \frac{1}{41} \)
5. \( \lim_{x \rightarrow 0}\left(\frac{x^{2}-3 x}{x+1}\right) = 0 \)
6. \( \lim_{x \rightarrow 1}\left(\frac{4 x-1}{2 x^{2}-3 x+4}\right) = 1 \)
7. \( \lim_{x \rightarrow 3}\left(\frac{3 x^{2}-1}{4 x^{2}+2}\right) = \frac{13}{19} \)
8. \( \lim_{x \rightarrow -5}\left(\frac{x^{3}-5}{3 x^{3}+x^{2}-5}\right) = \frac{26}{71} \)
9. \( \lim_{x \rightarrow 0}\left(\frac{x^{3}-4 x^{2}+x-1}{2 x^{2}+4 x-1}\right) = 1 \)
Si necesitas más detalles sobre algún cálculo específico, házmelo saber.
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