Mathematics · Differential Equations

The differential equation for which y = a cos x + b sin x is a solution, is:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1d2ydx2 + (a - b)y = 0
2d2ydx2 + (a + b)y = 0
3d2ydx2 - y = 0
4d2ydx2 + y = 0✓

Correct answer

d2ydx2 + y = 0

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The differential equation for which y = a cos x + b sin x is a solution, is:

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