# Problem 7: Consider y" + ly = 0, subject to the periodic boundary conditions y(-1/2) =...

###### Question: Problem 7: Consider y" + ly = 0, subject to the periodic boundary conditions y(-1/2) = y(1/2), y'(-1/2) = y'(7/2). Which of the following is a set of eigenfunctions for this boundary value problem? (A) (1, cos mx, cos 27x, (©) {1, cos £.xcos 4 x, (E) {1, coszx, coszx, (G) {1, cos 2x, cos 2 x, , sin ax, sin 2.1x, sin 3AX, ...} B) {1, cos2x, cos x, ... , sin 2x, sin x, sin ex, ...} sin {x, sin {x, sin 4x, ...} (D) {1, cos 2x, cos 4X, ..., sin 2x, sin 4x, sin 6X, ...} , sinįx, sin{x, sin 2 x, ...} (F) {1, cos x, cos 2x, ..., sin x, sin 2x, sin 3x, ...} sin x, sin 24 x, sin 34 x, ...} (H) {1, cos [ x, cos x, .. sin 3 x, sin ( x, sin 3x, ...} Problem 7: Select Just Save Submit Problem 7 for Grading Attempt 1 Attempt 2 Attempt 3 Problem 7 Your Answer: Your Mark:

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