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Matemáticas aplicadas

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APÉNDICE<br />

II<br />

Tabla de integrales<br />

Observación En toda integral, se omite la constante de integración y el lector deberá agregarla.<br />

Algunas fórmulas fundamentales<br />

1. [f(x) g(x)] dx f(x) dx g(x) dx<br />

2. cf(x) dx c f(x) dx<br />

3. f[g(x)]g′(x) dx f(u) du donde u g(x)<br />

4. f(x)g(x) dx f(x) g(x) dx f′(x) g(x) dx dx<br />

Integrandos racionales que incluyen (ax b)<br />

5. (ax b) n (ax b)<br />

dx <br />

n1<br />

(n 1)<br />

a(n 1)<br />

6. (ax b) 1 dx 1 ln⏐ax b⏐<br />

a<br />

7. x(ax b) n dx a<br />

1<br />

8. x(ax b) 1 dx a<br />

x a<br />

b<br />

2 ln⏐ax b⏐<br />

2(ax b) n1 (n 1, 2)<br />

9. x(ax b) 2 1<br />

dx a 2 <br />

b<br />

ln⏐ax b⏐ ax b <br />

x2<br />

1<br />

10. dx ax b a<br />

ax b<br />

n 2<br />

b<br />

n 1<br />

3 1 2 (ax b)2 2b(ax b) b 2 ln⏐ax b⏐ <br />

774

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