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Paragraph: Let l= _a^b |x| x d x, a b Question: What is l equal to when a 0 b ?

Options

  1. Aa+b
  2. Ba-b
  3. Cb-a
  4. D(a+b) 2

Correct answer

A. a+b

Step-by-step solution

aligned & l= _a^b |x| x d x & a 0 b aligned _a^b |x| x d x= _a^0 |x| x d x+ ₀^b |x| x d x= _a^0 -x x d x+ ₀^b x x d x=a+b

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