- #1
Dissonance in E
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Homework Statement
Find the general soulution to :
y'' = sin(2x)
and the particular solution that satisfies:
y(0) = −1/4, y(pi/4) = pi/2.
Homework Equations
y = c1y1(x) + c2y2(x) + yp(x)
The Attempt at a Solution
y'' = sin2x ----> y = -sin(2x)/4
-0.25C1sin(2x) - 0.25C2sin(2x)
Is there a more surefire method of finding the satisfying function than just simply intuition.
y(0) = -1/4
-0.25C1sin(2(0)) - 0.25C2sin(2(0)) + yp(0) = -1/4
yp(0) = -1/4
yp(pi/4) = pi/2
Id guess yp(x) is something like -0.25cos(x) as that would give -1/4 at yp(0)
However I am sure there's a formal pattern to finding these solutions so idk very much like to have that at my disposal. thanks