Problem #6: Let Problem #6: f(1) = S8 3 -8 0 <1 < * < 1< 2π and assume that when f(t) is extended to the negative t-axis in a periodic manner, the resulting function is even. Consider the following differential equation. d²x dt + 9x = f(1) Find a particular solution of the above differential equation of the form 00 Xp(t) = Σ An cost = Σ g(t,n) n=1 n=1 and enter the function g(t, n) into the answer box below. Enter your answer as a symbolic function of t,n, as in these examples

Advanced Engineering Mathematics
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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Problem #6: Let
Problem #6:
f(1) =
0 <1 < *
-8 < 1< 2π
3
S8
and assume that when f(t) is extended to the negative t-axis in a periodic manner, the resulting function is even.
Consider the following differential equation.
d²x
dt
+ 9x = f(1)
Find a particular solution of the above differential equation of the form
00
Xp(t) = Σ Ancos" 1 = Σ 8,n)
n=1
n=1
and enter the function g(t, n) into the answer box below.
Enter your answer as a symbolic
function of t,n, as in these
examples
Transcribed Image Text:Problem #6: Let Problem #6: f(1) = 0 <1 < * -8 < 1< 2π 3 S8 and assume that when f(t) is extended to the negative t-axis in a periodic manner, the resulting function is even. Consider the following differential equation. d²x dt + 9x = f(1) Find a particular solution of the above differential equation of the form 00 Xp(t) = Σ Ancos" 1 = Σ 8,n) n=1 n=1 and enter the function g(t, n) into the answer box below. Enter your answer as a symbolic function of t,n, as in these examples
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