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Instrucciones en PDF - Elisa Schaeffer

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CAPÍTULO 5. PREPARACIÓN DE DOCUMENTOS (DE TEXTO) 81<br />

Ejemplo 16<br />

⎡<br />

λE − A = ⎢<br />

⎣<br />

⎤<br />

λE 1 − A 1<br />

λE 2 − A 2 . ..<br />

⎥<br />

⎦<br />

λE s − A s<br />

(5.4)<br />

producido por<br />

\begin{equation}<br />

\lambda E -A = \left[ \begin{array}{cccc}<br />

\lambda E_1 - A_1 & & & \\<br />

& \lambda E_2 - A_2 & & \\<br />

& & \ddots & \\<br />

& & & \lambda E_s - A_s<br />

\<strong>en</strong>d{array}\right]<br />

\<strong>en</strong>d{equation}<br />

Ejemplo 17<br />

producido por<br />

⎧<br />

⎨ 4 si x ≤ −4<br />

1<br />

f(x) = si −4 < x < 0<br />

x+4<br />

⎩<br />

x + 4 si x ≥ 0<br />

(5.5)<br />

\begin{equation}<br />

f(x)=\left\{<br />

\begin{array}{ccc}<br />

4 & \mbox{si} & x\leq -4\\<br />

\frac{1}{x+4} & \mbox{si} & -4

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