Homogeneous Linear Differential Equations (General Form of LDE)
The solution ...
Question
The solution to the ordinary differential equation d2ydx2+dydx−6y=0 is
A
y=C1e3x+C2e−2x
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B
y=C1e3x+C2e2x
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C
y=C1e−3x+C2e2x
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D
y=C1e−3x+C2e−2x
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Solution
The correct option is Cy=C1e−3x+C2e2x Given DE is d2ydx2+dydx−6y=0
Auxiliary equation is m2+m−6=0 ⇒(m+3)(m−2)=0 ⇒m=−3,2
General solution is y=C1e−3x+C2e2x