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harkovskaia [24]
3 years ago
10

Find all values of m so that the function y= e^mx is a solution of the given differential equation.

Mathematics
1 answer:
son4ous [18]3 years ago
3 0

Answer:

m = - 2 is the value of m that the function y= e^mx is a solution of the differential equation, y' + 2y = 0.

Step-by-step explanation:

To determine all values of m so that the function y= e^mx is a solution of the given differential equation.

First, we will find y'.

From, y= e^mx

y = e^{mx}

But, y' = \frac{d}{dx}y

Hence,

y' = \frac{d}{dx}e^{mx}\\

∴ y' = me^{mx}

Now, we will put the values of y' and y into the given differential equation y' + 2y =0

From the question,

y = e^{mx}

and

y' = me^{mx}

Then, y' + 2y =0\\ becomes

me^{mx} + 2(e^{mx}) = 0

Then, me^{mx} = - 2(e^{mx}) \\\\

m = \frac{-2(e^{mx}) }{e^{mx} } \\

∴ m = -2

Hence, m = - 2 is the value of m that the function y= e^mx is a solution of the differential equation, y' + 2y = 0.

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