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

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.4: Values Of The Trigonometric Functions
Problem 38E
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can you answer part c
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)
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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