Answer
Aquí están las soluciones a los ejercicios de integración:
1. \( \int(3-x+x^{5}-2 x^{7}) d x = x^{2}+\frac{x^{6}}{6}-\frac{x^{8}}{4} + C \)
2. \( \int\left(5 \sqrt{x} \sqrt[3]{x}+\sqrt[4]{x}-\frac{2}{\sqrt[4]{x}}\right) d x = \frac{30}{11}x\sqrt[6]{x^{5}}+\frac{4}{5}x\sqrt[4]{x}-\frac{8}{3}\sqrt[4]{x^{3}} + C \)
3. \( \int(2-2 x)^{3} x d x = \frac{8-40x+80x^{2}-80x^{3}+40x^{4}-8x^{5}}{5}-2+8x-12x^{2}+8x^{3}-2x^{4} + C \)
4. \( \int \frac{3 x^{2}-4 x-4}{x-2} d x = \frac{3x^{2}}{2}+2x + C \)
5. \( \int \frac{(x+1)(x-2)}{\sqrt{x}} d x = \frac{2}{5}x^{2}\sqrt{x}-\frac{2}{3}x\sqrt{x}-4\sqrt{x} + C \)
Si necesitas más ayuda o aclaraciones sobre algún ejercicio, no dudes en preguntar.
Solution
Evaluate the integral by following steps:
- step0: Evaluate using formulas and rules:
\(\int \left(3x-x+x^{5}-2x^{7}\right) dx\)
- step1: Subtract the terms:
\(\int \left(2x+x^{5}-2x^{7}\right) dx\)
- step2: Use properties of integrals:
\(\int 2x dx+\int x^{5} dx+\int -2x^{7} dx\)
- step3: Evaluate the integral:
\(x^{2}+\int x^{5} dx+\int -2x^{7} dx\)
- step4: Evaluate the integral:
\(x^{2}+\frac{x^{6}}{6}+\int -2x^{7} dx\)
- step5: Evaluate the integral:
\(x^{2}+\frac{x^{6}}{6}-\frac{x^{8}}{4}\)
- step6: Add the constant of integral C:
\(x^{2}+\frac{x^{6}}{6}-\frac{x^{8}}{4} + C, C \in \mathbb{R}\)
Calculate the integral \( (x+1)*(x-2)/\sqrt(x) \).
Evaluate the integral by following steps:
- step0: Evaluate using formulas and rules:
\(\int \frac{\left(x+1\right)\left(x-2\right)}{\sqrt{x}} dx\)
- step1: Multiply the terms:
\(\int \frac{x^{2}-x-2}{\sqrt{x}} dx\)
- step2: Rewrite the fraction:
\(\int \left(x^{\frac{3}{2}}-x^{\frac{1}{2}}-\frac{2}{x^{\frac{1}{2}}}\right) dx\)
- step3: Use properties of integrals:
\(\int \left(x^{\frac{3}{2}}-x^{\frac{1}{2}}\right) dx+\int -\frac{2}{x^{\frac{1}{2}}} dx\)
- step4: Evaluate the integral:
\(\frac{2}{5}x^{\frac{5}{2}}-\frac{2}{3}x^{\frac{3}{2}}+\int -\frac{2}{x^{\frac{1}{2}}} dx\)
- step5: Evaluate the integral:
\(\frac{2}{5}x^{\frac{5}{2}}-\frac{2}{3}x^{\frac{3}{2}}-4x^{\frac{1}{2}}\)
- step6: Simplify:
\(\frac{2}{5}x^{2}\sqrt{x}-\frac{2}{3}x^{\frac{3}{2}}-4x^{\frac{1}{2}}\)
- step7: Simplify:
\(\frac{2}{5}x^{2}\sqrt{x}-\frac{2}{3}x\sqrt{x}-4x^{\frac{1}{2}}\)
- step8: Simplify:
\(\frac{2}{5}x^{2}\sqrt{x}-\frac{2}{3}x\sqrt{x}-4\sqrt{x}\)
- step9: Add the constant of integral C:
\(\frac{2}{5}x^{2}\sqrt{x}-\frac{2}{3}x\sqrt{x}-4\sqrt{x} + C, C \in \mathbb{R}\)
Calculate the integral \( 5*\sqrt(x)*x^(1/3)+x^(1/4)-2/x^(1/4) \).
Evaluate the integral by following steps:
- step0: Evaluate using formulas and rules:
\(\int \left(5\sqrt{x}\times x^{\frac{1}{3}}+x^{\frac{1}{4}}-\frac{2}{x^{\frac{1}{4}}}\right) dx\)
- step1: Reorder the terms:
\(\int \left(5\sqrt[6]{x^{5}}+x^{\frac{1}{4}}-\frac{2}{x^{\frac{1}{4}}}\right) dx\)
- step2: Use properties of integrals:
\(\int 5\sqrt[6]{x^{5}} dx+\int x^{\frac{1}{4}} dx+\int -\frac{2}{x^{\frac{1}{4}}} dx\)
- step3: Evaluate the integral:
\(\frac{30}{11}x^{\frac{11}{6}}+\int x^{\frac{1}{4}} dx+\int -\frac{2}{x^{\frac{1}{4}}} dx\)
- step4: Evaluate the integral:
\(\frac{30}{11}x^{\frac{11}{6}}+\frac{4}{5}x^{\frac{5}{4}}+\int -\frac{2}{x^{\frac{1}{4}}} dx\)
- step5: Evaluate the integral:
\(\frac{30}{11}x^{\frac{11}{6}}+\frac{4}{5}x^{\frac{5}{4}}-\frac{8}{3}x^{\frac{3}{4}}\)
- step6: Simplify:
\(\frac{30}{11}x\sqrt[6]{x^{5}}+\frac{4}{5}x^{\frac{5}{4}}-\frac{8}{3}x^{\frac{3}{4}}\)
- step7: Simplify:
\(\frac{30}{11}x\sqrt[6]{x^{5}}+\frac{4}{5}x\sqrt[4]{x}-\frac{8}{3}x^{\frac{3}{4}}\)
- step8: Simplify:
\(\frac{30}{11}x\sqrt[6]{x^{5}}+\frac{4}{5}x\sqrt[4]{x}-\frac{8}{3}\sqrt[4]{x^{3}}\)
- step9: Add the constant of integral C:
\(\frac{30}{11}x\sqrt[6]{x^{5}}+\frac{4}{5}x\sqrt[4]{x}-\frac{8}{3}\sqrt[4]{x^{3}} + C, C \in \mathbb{R}\)
Calculate the integral \( (3*x^2-4*x-4)/(x-2) \).
Evaluate the integral by following steps:
- step0: Evaluate using formulas and rules:
\(\int \frac{\left(3x^{2}-4x-4\right)}{\left(x-2\right)} dx\)
- step1: Remove the parentheses:
\(\int \frac{3x^{2}-4x-4}{x-2} dx\)
- step2: Simplify the expression:
\(\int \left(3x+2\right) dx\)
- step3: Use properties of integrals:
\(\int 3x dx+\int 2 dx\)
- step4: Evaluate the integral:
\(\frac{3x^{2}}{2}+\int 2 dx\)
- step5: Evaluate the integral:
\(\frac{3x^{2}}{2}+2x\)
- step6: Add the constant of integral C:
\(\frac{3x^{2}}{2}+2x + C, C \in \mathbb{R}\)
Calculate the integral \( (2-2*x)^3*x \).
Evaluate the integral by following steps:
- step0: Evaluate using substitution:
\(\int \left(2-2x\right)^{3}x dx\)
- step1: Use the substitution \(dx=-\frac{1}{2} dt\) to transform the integral\(:\)
\(\int \left(2-2x\right)^{3}x\left(-\frac{1}{2}\right) dt\)
- step2: Simplify:
\(\int -\frac{\left(2-2x\right)^{3}}{2}x dt\)
- step3: Use the substitution \(t=2-2x\) to transform the integral\(:\)
\(\int \frac{-t^{3}}{2}\times \left(-\frac{1}{2}t+1\right) dt\)
- step4: Simplify:
\(\int \frac{\frac{1}{2}t^{4}-t^{3}}{2} dt\)
- step5: Rewrite the expression:
\(\int \frac{1}{2}\left(\frac{1}{2}t^{4}-t^{3}\right) dt\)
- step6: Use properties of integrals:
\(\frac{1}{2}\times \int \left(\frac{1}{2}t^{4}-t^{3}\right) dt\)
- step7: Use properties of integrals:
\(\frac{1}{2}\left(\int \frac{1}{2}t^{4} dt+\int -t^{3} dt\right)\)
- step8: Calculate:
\(\frac{1}{2}\times \int \frac{1}{2}t^{4} dt+\frac{1}{2}\times \int -t^{3} dt\)
- step9: Evaluate the integral:
\(\frac{t^{5}}{20}+\frac{1}{2}\times \int -t^{3} dt\)
- step10: Evaluate the integral:
\(\frac{t^{5}}{20}-\frac{t^{4}}{8}\)
- step11: Substitute back:
\(\frac{\left(2-2x\right)^{5}}{20}-\frac{\left(2-2x\right)^{4}}{8}\)
- step12: Rewrite the expression:
\(\frac{8\left(1-x\right)^{5}}{5}-\frac{\left(2-2x\right)^{4}}{8}\)
- step13: Rewrite the expression:
\(\frac{8\left(1-x\right)^{5}}{5}-2\left(1-x\right)^{4}\)
- step14: Calculate:
\(\frac{8\left(1-x\right)^{5}}{5}-2+8x-12x^{2}+8x^{3}-2x^{4}\)
- step15: Expand the expression:
\(\frac{8-40x+80x^{2}-80x^{3}+40x^{4}-8x^{5}}{5}-2+8x-12x^{2}+8x^{3}-2x^{4}\)
- step16: Add the constant of integral C:
\(\frac{8-40x+80x^{2}-80x^{3}+40x^{4}-8x^{5}}{5}-2+8x-12x^{2}+8x^{3}-2x^{4} + C, C \in \mathbb{R}\)
Aquí están las soluciones a los ejercicios de integración:
1. Para la integral \( \int(3-x+x^{5}-2 x^{7}) d x \):
\[
\int(3-x+x^{5}-2 x^{7}) d x = x^{2}+\frac{x^{6}}{6}-\frac{x^{8}}{4} + C, \quad C \in \mathbb{R}
\]
2. Para la integral \( \int\left(5 \sqrt{x} \sqrt[3]{x}+\sqrt[4]{x}-\frac{2}{\sqrt[4]{x}}\right) d x \):
\[
\int\left(5 \sqrt{x} \sqrt[3]{x}+\sqrt[4]{x}-\frac{2}{\sqrt[4]{x}}\right) d x = \frac{30}{11}x\sqrt[6]{x^{5}}+\frac{4}{5}x\sqrt[4]{x}-\frac{8}{3}\sqrt[4]{x^{3}} + C, \quad C \in \mathbb{R}
\]
3. Para la integral \( \int(2-2 x)^{3} x d x \):
\[
\int(2-2 x)^{3} x d x = \frac{8-40x+80x^{2}-80x^{3}+40x^{4}-8x^{5}}{5}-2+8x-12x^{2}+8x^{3}-2x^{4} + C, \quad C \in \mathbb{R}
\]
4. Para la integral \( \int \frac{3 x^{2}-4 x-4}{x-2} d x \):
\[
\int \frac{3 x^{2}-4 x-4}{x-2} d x = \frac{3x^{2}}{2}+2x + C, \quad C \in \mathbb{R}
\]
5. Para la integral \( \int \frac{(x+1)(x-2)}{\sqrt{x}} d x \):
\[
\int \frac{(x+1)(x-2)}{\sqrt{x}} d x = \frac{2}{5}x^{2}\sqrt{x}-\frac{2}{3}x\sqrt{x}-4\sqrt{x} + C, \quad C \in \mathbb{R}
\]
Si necesitas más ayuda o aclaraciones sobre algún ejercicio, no dudes en preguntar.
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