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What is  equal to?

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NDA (Held On: 17 April 2016) Maths Previous Year paper
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  1. 0
  2. 2
  3. 4
  4. 8

Answer (Detailed Solution Below)

Option 4 : 8
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Detailed Solution

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Concept:

Properties for definite Integral

  • If f(x) is periodic function with period T then 

 

Calculation:

Period of |cos x| is π

= 4(1 – 0) – 4(0 – 1)

= 4 + 4 = 8

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