Mathematics · Functions and Relations
Let f : &mathbb; - {2, 6} → &mathbb; be a real-valued function defined as f(x) = x2 + 2x + 1x2 - 8x + 12. Then the range of f is:
- 1(-∞, 0] ∪ [214, ∞)
- 2(-∞, -214] ∪ [214, ∞)
- 3(-∞, -214) ∪ (0, ∞)
- 4(-∞, -214] ∪ [0, ∞)✓
Correct answer
(-∞, -214] ∪ [0, ∞)
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