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NDA2020MathematicsLimitsActual

What is _ x 0 3^x+3^ -x -2 x equal to?

Options

  1. A0
  2. B-1
  3. C1
  4. DLimit does not exist

Correct answer

A. 0

Step-by-step solution

_ x 0 3^x+3^ -x -2 x = _ x 0 3^x 3-3^ -x 3 1 (By L'Hospital rule) = 3^0 3-3^0 3 1 =0

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