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vladimir1956 [14]

3 years ago

15

(7x-12)+(13-2x)

12) + (13 - 2x)" alt="(7x - 12) + (13 - 2x)" align="absmiddle" class="latex-formula">

1 answer:

Julli [10]3 years ago

5 0

The answer is : 5x+1

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(15 pts) 4. Find the solution of the following initial value problem: y"-10y'+25y = 0 with y(0) = 3 and y'(0) = 13

jolli1 [7]

Answer:

$y(x)=3e^{5x}-2xe^{5x}$

Step-by-step explanation:

The given differential equation is $y''-10y'+25y=0$

The characteristics equation is given by

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Finding the values of r

$r^2-5r-5r+25=0\\\\r(r-5)-5(r-5)=0\\\\(r-5)(r-5)=0\\\\r_{1,2}=5$

We got a repeated roots. Hence, the solution of the differential equation is given by

$y(x)=c_1e^{5x}+c_2xe^{5x}...(i)$

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$y'(x)=5c_1e^{5x}+5c_2xe^{5x}+c_2e^{5x}...(ii)$

Apply the initial condition y (0)= 3 in equation (i)

$3=c_1e^{0}+0\\\\c_1=3$

Now, apply the initial condition y' (0)= 13 in equation (ii)

$13=5(3)e^{0}+0+c_2e^{0}\\\\13=15+c_2\\\\c_2=-2$

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$y(x)=3e^{5x}-2xe^{5x}$

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3 years ago

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vichka [17]

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For one semester at School B-
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School A- $950
School B- $900

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3 years ago