2 point Find the integral: / = I. (cosax cosnx ) dx a sinan cosn a². 2a sinan cosn (A) I = (B) / (a7) -n? 4a sinan cosn 4a sinan cosnT (C) I = (D) / = %3D (an) +n° a² +n? (A) (B) (C) (D)

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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stion 1
2 point
Find the integral: I = |. (cosax cosnx)dx
a sinɑn cosn
2a sinan cosn
(A) I =
(B) I =
a²-n2
(an) -n²
4a sinan cosnT
4a sinan cosnT
(C) I =
(D) I
%3D
(a7) +n²
a²+n?
(B) o (O o ()
(A)
Questi
A Moving to the next question prevents changes to this answer.
Transcribed Image Text:A Moving to the next question prevents changes to this answer. stion 1 2 point Find the integral: I = |. (cosax cosnx)dx a sinɑn cosn 2a sinan cosn (A) I = (B) I = a²-n2 (an) -n² 4a sinan cosnT 4a sinan cosnT (C) I = (D) I %3D (a7) +n² a²+n? (B) o (O o () (A) Questi A Moving to the next question prevents changes to this answer.
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