Page 21 - KIII - Álgebra 4
P. 21
Álgebra 4° Secundaria
18. Indica un intervalo solución de la siguiente 2. Resolver:
inecuación: 1 x 3 x x 2 3
1 A) [2; 3 B) [11; +∞ C) [0; 2
A) [–1; 3 B) 0;
3 D) -∞; 0] E) [3; 9
C) –1;3] ∪ 〈4;+∞ D) [–3; 0
E) –3; 1] ∪ [3; +∞ 3. Resolver:
1 x 2 0
19. Resuelva:
x 2 x 1 1 A) -∞; -2 B) -2; 1] C) [1; 4
D) -∞; 1] E)
2 5 1 7
A) ; B) ;
2 2 4. Resolver:
3 10 x 5 3 0
C) ; D) 0;+∞
2 A) [5; 9 B) C) ℝ
E) [2;+∞ D) 0; +∞ E) [-3; 5]
20. Resolver: 5. Resolver:
x 1 2 2x 0
1
x 7 x
A) x {1; 2} B) x {9; 12}
C) x 〈0; 1] D) x {1} A) [1; 7] B) [2; 5] C) [2; +∞
E) x {2} D) [7; +∞ E) [0; +∞
1. Resolver:
x 4 2
A) 4; 5 B) [4; 8 C) 0; 4]
D) [6; +∞ E) [2; 4]
Compendio -66-