7. Consider the equation x"+w²x = cos Bt. a) Find the solution when the initial conditions are r(0) = r'(0) = 0 when w‡ B. b) Use the trigonometric identity 2 sin A sin B = cos(A-B) - cos(A+B) to write the solution as a product of sines. (b) on
7. Consider the equation x"+w²x = cos Bt. a) Find the solution when the initial conditions are r(0) = r'(0) = 0 when w‡ B. b) Use the trigonometric identity 2 sin A sin B = cos(A-B) - cos(A+B) to write the solution as a product of sines. (b) on
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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