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TRIGONOMETRÍA<br />

iii) y = arc tgx<br />

π /2<br />

x ∈ R<br />

y ∈ < -<br />

π<br />

,<br />

2<br />

π<br />

><br />

2<br />

o<br />

x<br />

− π /2<br />

Ejemplo:<br />

Arc Tg (1) = 4<br />

π<br />

Arc Tg (2 -<br />

3 ) = 12<br />

π<br />

Arc tg (-1) = - 4<br />

π<br />

Arc tg (<br />

3 -2) = - 12<br />

π<br />

Arc tg (-x) = - Arc tg x<br />

iv) y = arc ctg (x)<br />

arc ctg. (3/4) = 53º<br />

x ∈ R<br />

y ∈ <br />

arc ctg. (- 3/4) = 180º - 53º = 127º<br />

* PROPIEDADES<br />

1. La función directa anula a su inversa<br />

Sen (arc Senx) = x<br />

Cos (arc Cosx) = x<br />

Tg (arc Tg x) = x<br />

Ejm: Sen (arc Sen 5<br />

2 ) = 5<br />

2<br />

11 11<br />

Cos (arc Cos ) = 10 10<br />

Tg (arc Ctg 1996) = 1996<br />

CUESTIONARIO DESARROLLADO

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