b) c) For any 2₁,2₂ €α COS(7₁ +2₂) = COSZ, COSZ₂ = SINZ, Sinz C sinz, CoS z = 0 if and only if z = 2/2 +TIK, KE ZZ 11
b) c) For any 2₁,2₂ €α COS(7₁ +2₂) = COSZ, COSZ₂ = SINZ, Sinz C sinz, CoS z = 0 if and only if z = 2/2 +TIK, KE ZZ 11
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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Question
100%
can you answer part c
Transcribed Image Text:1
Using Euler's formula prove the following:
For any
2
ZEC
Sin²³² z + cos²³² z = 1
For any
2₁,7₂ EC
cos(7₁ +2₂) = COSZ, Cosz₂ - sinz, Sinz
ㅠ
cos z = 0 if and only if = = = +TTK, KE ZZ
b)
c)
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