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KCET2020MathematicsProbability

_ x 0 ( x 2 x+4 -2 ) is equal to

Options

  1. A2
  2. B3
  3. C4
  4. D6

Correct answer

A. 2

Step-by-step solution

We have, _ x 0 ( x 2 x+4 -2 )= _ x 0 ( x)( 2 x+4 +2) (2 x+4)-4 = _ x 0 x( 2 x+4 +2) 2 x = 1 2 ( 4 +2)= 1 2 (2+2)=2

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