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MATEMÁTICAS - Ministerio de Educación

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SOLUCIONES<br />

1. El lugar geométrico es la parábola y= 1<br />

2 x2−x3 , la recta tangente es: y=4x− 19<br />

2<br />

normal es y= −1 47<br />

x<br />

4 4 .<br />

2.<br />

3. [<br />

a) a = 6, b = 8, c = 10, e = 5/3, y=± 4<br />

3 x<br />

b) a = 1, b = 2, c=5,e=5 , y=±2x<br />

614<br />

x− 2 ]2<br />

[<br />

614<br />

y− [ =9,<br />

2 ]2<br />

6−14<br />

x− 2 ]2<br />

63<br />

4. El eje es x = -1, vértice (-1, -16), foco −1,− 4 , directriz y=−65<br />

4 .<br />

174<br />

[<br />

6−14<br />

y−<br />

=9<br />

2 ]2<br />

, la recta

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