– sin 0] cos e I [cos 20 - sin 201 Lsin 20 [cos 0 Isin 0 Let A = a) Show that A² = b) Use mathematical induction to establish (prove) a formula for A" (n 2 1). | (Hint: Use trigonometric identities) cos 20 ] c) If 0 = ", use your formula found in b) to find A2020.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.4: Mathematical Induction
Problem 44E
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I need help with b) and c), thank you!

– sin 0]
cos e I
[cos 20 - sin 201
Lsin 20
[cos 0
Isin 0
Let A =
a) Show that A² =
b) Use mathematical induction to establish (prove) a formula for A" (n 2 1).
| (Hint: Use trigonometric identities)
cos 20 ]
c) If 0 = ", use your formula found in b) to find A2020.
Transcribed Image Text:– sin 0] cos e I [cos 20 - sin 201 Lsin 20 [cos 0 Isin 0 Let A = a) Show that A² = b) Use mathematical induction to establish (prove) a formula for A" (n 2 1). | (Hint: Use trigonometric identities) cos 20 ] c) If 0 = ", use your formula found in b) to find A2020.
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