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CLASE 107

CLASE 107. INECUACIONES FRACCIONARIAS. Halla el conjunto solución de la inecuación:. 15x 2 –34x+29. x 2 +1 . x+4. 15x 2 –34x+29. x+4. 1.  0. x 2 +1. (x 2 +1)(x+4). (15x 2 –34x+29).  0. x+4. –15x 2 +34x–29. x 3 +4x 2 +x+4.  0. x+4. x 3 –11x 2 +35x–25.  0. x+4. 7x–1

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CLASE 107

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  1. CLASE 107 INECUACIONES FRACCIONARIAS

  2. Halla el conjunto solución de la inecuación: 15x2–34x+29 x2+1  x+4 15x2–34x+29 x+4 1  0 x2+1 (x2+1)(x+4) (15x2–34x+29) 0 x+4 –15x2+34x–29 x3+4x2+x+4 0 x+4 x3–11x2+35x–25 0 x+4

  3. 7x–1 x+3 3x–1 2 3 S =(–3;–1][ ;+) Trabajo independiente Halla el conjunto solución de la inecuación:

  4. A –A A – = = Determina el dominio de la función f(x)= B –B B  2 1 – (–B) B) (A A (–A) B  0 x+5 x+5 x+5 (B  0) 1–x 1–x 1–x = =  (–1)(–1)  0 –1+x (–1)(1–x)= = x–1

  5. Determina el dominio de la función f(x)=   0  0 x+5 x+5 x+5 x+5  1–x 1–x 1–x x–1 + + –5 1  (–1)(–1)  0 Cero: x=–5 Indefine: x=1 + +

  6. Determina el dominio de la función f(x)=  x+5 1–x + + –5 1 Domf(x)={x:–5  x  1} + +

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