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Tamil Nadu Board of Secondary EducationHSC Science Class 11

Choose the correct alternative: If f(x) = |x − 2| + |x + 2|, x ∈ R, then - Mathematics

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Question

Choose the correct alternative:

If f(x) = |x − 2| + |x + 2|, x ∈ R, then

Options

  • f(x) = `{{:(- 2x,  "if"  x ∈ (- ∞, - 2]),(4,  "if"  x ∈ (- 2, 2]),(2x,  "if"  x ∈ (2, ∞)):}`

  • f(x) = `{{:(2x,  "if"  x ∈ (- ∞, - 2]),(4x,  "if"  x ∈ (- 2, 2]),(- 2x,  "if"  x ∈ (2, ∞)):}`

  • f(x) = `{{:(- 2x,  "if"  x ∈ (- ∞, - 2]),(- 4x,  "if"  x ∈ (- 2, 2]),(2x,  "if"  x ∈ (2, ∞)):}`

  • f(x) = `{{:(- 2x,  "if"  x ∈ (- ∞, - 2]),(2x,  "if"  x ∈ (- 2, 2]),(2x,  "if"  x ∈ (2, ∞)):}`

MCQ
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Solution

f(x) = `{{:(- 2x,  "if"  x ∈ (- ∞, - 2]),(4,  "if" x ∈ (- 2, 2]),(2x,  "if" x ∈ (2, ∞)):}`

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Chapter 1: Sets, Relations and Functions - Exercise 1.5 [Page 46]

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Samacheer Kalvi Mathematics - Volume 1 and 2 [English] Class 11 TN Board
Chapter 1 Sets, Relations and Functions
Exercise 1.5 | Q 4 | Page 46
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