Sutapa Das posted an Question
September 16, 2021 • 13:50 pm 30 points
  • CSIR NET
  • Physical Sciences

+2 sech2 xf- f= 0. d 7. one of the solution is: a) sech x (b) sech x (c) tanh x d) sech" x

+2 sech2 xf- f= 0. d 7. One of the solution is: A) sech x (B) sech x (C) tanh x D) sech" x

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  • Dr suman 1

    if you still have any doubt you can feel free to ask.

  • Dr suman 1 best-answer

    option A will satisfy the equation. please see the attached image.

    cropped2220562588696868959.jpg
  • Dr suman 1

    Take the derivative of the given options and put into the given equations. The option which satisfy the equation that will be the answer.

  • Dr suman 1

    Take the derivative of the given options and put into the given equations. The option which satisfy the equation that will be the answer.

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