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Question

Solution of differential equation fraction numerator d y over denominator d x end fraction plus a y equals e to the power of m x end exponent is

  1. left parenthesis a plus m right parenthesis y equals e to the power of m x end exponent plus c
  2. y e to the power of a x end exponent equals m e to the power of m x end exponent plus c
  3. y equals e to the power of m x end exponent plus c e to the power of negative a x end exponent
  4. left parenthesis a plus m right parenthesis y equals e to the power of m x end exponent plus c e to the power of negative a x end exponent

hintHint:

In this question we have to find the solution of the differential equation. For this we will find the IF and then the solution.

The correct answer is: left parenthesis a plus m right parenthesis y equals e to the power of m x end exponent plus c e to the power of negative a x end exponent


    fraction numerator d y over denominator d x end fraction plus a y equals e to the power of m x end exponent
I n t e g r a t i n space f a c t o r equals e to the power of integral P d x end exponent equals e to the power of integral a space d x space end exponent equals e to the power of a x end exponent
y open parentheses e to the power of a x end exponent close parentheses equals integral e to the power of a x end exponent. e to the power of m x end exponent space. d x plus C
space space space space space space space space space space space equals integral e to the power of open parentheses a plus m close parentheses x end exponent d x plus C
space space space space space space space space space space space equals fraction numerator e to the power of open parentheses a plus m close parentheses x end exponent over denominator a plus m end fraction plus C
rightwards double arrow open parentheses a plus m close parentheses y equals fraction numerator e to the power of a x end exponent. e to the power of m x end exponent over denominator e to the power of a x end exponent end fraction plus C over e to the power of a x end exponent
rightwards double arrow open parentheses a plus m close parentheses y equals e to the power of m x end exponent plus C e to the power of negative a x end exponent

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