Prove that (a) (b) 1 + cos 0 + cos 20 + sin+sin 20 + + cos(n − 1)0 + sin(n − 1)0 = = COS sin (n-1) 2 sin (n-1)0 sin 2 sin 2 sin no 2 no 2
Prove that (a) (b) 1 + cos 0 + cos 20 + sin+sin 20 + + cos(n − 1)0 + sin(n − 1)0 = = COS sin (n-1) 2 sin (n-1)0 sin 2 sin 2 sin no 2 no 2
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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Transcribed Image Text:Prove that
(a)
(b)
1 + cos 0 + cos 20 +
sin+sin 20 +
+ cos(n − 1)0
+ sin(n-1)0
(n-1)0 sinn
2
2
sin 2
sin (n-1) sin no
2
2
sin
=
=
COS
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