Sutapa das Asked a Question
September 16, 2021 1:50 pmpts 30 pts
+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.
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  • Dr suman 1 thankyou
    option A will satisfy the equation. please see the attached image.
    • cropped2220562588696868959.jpg
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  • Sutapa das
    can you tell me how?
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    Dr suman 1
    see the above attached image.
  • 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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  • 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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