y= 5cosx -3sinx, prove that d^2y/dx^2+y=0

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asked Jan 19, 2018 in Mathematics by sforrest072 (157,439 points) 61 410 949
recategorized Jan 19, 2018 by sforrest072

y= 5cosx -3sinx, prove that d2y/dx2+y=0

If

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answered Jan 19, 2018 by mdsamim (213,225 points) 5 10 15
selected Jan 19, 2018 by sforrest072
 
Best answer

It is given that, y=5cosx-3sinx
Then,

Hence, proved.

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