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Solve the Initial-Value Problem ytt+8yt+41y=0,y(0)=1,yt(0)=4y ^ { tt } + 8 y ^ { t} + 41 y = 0 , y ( 0 ) = 1 , y ^ { t } ( 0 ) = 4

Question 82

Multiple Choice

Solve the initial-value problem. Select the correct answer.
ytt+8yt+41y=0,y(0) =1,yt(0) =4y ^ { tt } + 8 y ^ { t} + 41 y = 0 , y ( 0 ) = 1 , y ^ { t } ( 0 ) = 4


A)
y=e4x(cos(5x) +85sin(5x) ) y = e ^ { - 4 x } \left( \cos ( 5 x ) + \frac { 8 } { 5 } \sin ( 5 x ) \right)
B)
y=e5x(cos(5x) +25sin(5x) ) y = e ^ { - 5 x } \left( \cos ( 5 x ) + \frac { 2 } { 5 } \sin ( 5 x ) \right)
C)
y=e5x(cos(4x) +85sin(4x) ) y = e ^ { 5 x } \left( \cos ( 4 x ) + \frac { 8 } { 5 } \sin ( 4 x ) \right)
D)
y=e4x(cos(5x) 25sin(5x) ) y = e ^ { 4 x } \left( \cos ( 5 x ) - \frac { 2 } { 5 } \sin ( 5 x ) \right)
E)
y=e5x(cos(5x) +85sin(5x) ) y = e ^ { 5 x } \left( \cos ( 5 x ) + \frac { 8 } { 5 } \sin ( 5 x ) \right)

Correct Answer:

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