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F(x) > 0 e g(x) > 0

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Title: Slide 1 Author: Andr Last modified by: Andr Created Date: 7/30/2006 2:22:28 PM Document presentation format: Apresenta o na tela Company – PowerPoint PPT presentation

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Title: F(x) > 0 e g(x) > 0


1
(No Transcript)
2
  • F(x) gt 0 e g(x) gt 0
  • I) 2x 10 gt 0
  • 2x gt 10
  • x gt 5
  • II) 6 2x gt 0
  • -2x gt - 6
  • .(-1) -2x gt - 6 .(-1)
  • 2x lt 6
  • x lt 3

5
I) f(x)
3
II) g(x)
f(x) e g(x)
S
Exercício 4 a
3
  • F(x) gt 0 ou g(x) gt 0
  • I) 2x 10 gt 0
  • 2x gt 10
  • x gt 5
  • II) 6 2x gt 0
  • -2x gt - 6
  • .(-1) -2x gt - 6 .(-1)
  • 2x lt 6
  • x lt 3

5
I) f(x)
3
II) g(x)
3
5
f(x) ou g(x)
S xer/xlt3 ou xgt5
Exercício 4 b
4
(2x - 7)(x - 1) lt 0 I) 2x 7 0 2x 7
x 7/2 II) x 1 0 x 1
CRESCENTE
7/2
I) x 7/2
- - - - - - - -

CRESCENTE
1
II) x 1
- - - - - - - -

7/2
I) x 7/2
- - - - - - - - - - - - - - - -

1
II) x 1
- - - - - - - -

1
7/2

- - - - -

S xer/1ltxlt7/2
Exercício 1 (Inequação produto)
5
x - 3 x 1 I) x 3 0 x
3 II) x 1 0 x -1
CRESCENTE
gt0
3
I) x 3
- - - - - - - -

CRESCENTE
-1
II) x -1
- - - - - - - -

3
I) x 3
- - - - - - - - - - - - - - - -

-1
II) x -1
- - - - - - - -

-1
3

- - - - -

S xer/xlt-1ou xgt3
Exercício 1 (Inequação quociente)
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