Question
The differential equation for y = A cos αx + B sin αx where A and B are arbitary constants is
Options :
d²y/dx² – α²y = 0
d²y/dx² + α²y = 0
d²y/dx² + αy = 0
d²y/dx² – αy = 0
Answer :
d²y/dx² + α²y = 0
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