8 8 α Ω Un R Ω

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 70E
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b. Calculate
R=
and express it as R+ iI (in exact form).
8
∞
a
Ω
əx
Ә
sin (a)
00
Ω
əx
c. Calculate (4+61) (1 - 4i) and express it in exponential form reie
Give your answers to three decimal places.
T =
Ә
nim(a)
O
O
I=
-8+52
-2+4i
sin (a)
h
f
f
H
m
R
B
with 00 2T.
m
Submit Assignment
Quit &
Transcribed Image Text:b. Calculate R= and express it as R+ iI (in exact form). 8 ∞ a Ω əx Ә sin (a) 00 Ω əx c. Calculate (4+61) (1 - 4i) and express it in exponential form reie Give your answers to three decimal places. T = Ә nim(a) O O I= -8+52 -2+4i sin (a) h f f H m R B with 00 2T. m Submit Assignment Quit &
liverpool.mobius.cloud
€
S
a. Express x = -4+8i in its trigonometric form r (cos(0) + i sin (0)) with 0≤0 < 2π.
Give your answers to three decimal places.
T=
ə
sin (a)
8
Ω
?х
8
8
a S2.
əx
and avnrace it ac RiT (in evact form)
h198_FA_2122
ab
0=
9
h Calculato
sin (a)
-8+5i
R
E
E
Submit Assignment
1
m Univ
Quit & Save
Transcribed Image Text:liverpool.mobius.cloud € S a. Express x = -4+8i in its trigonometric form r (cos(0) + i sin (0)) with 0≤0 < 2π. Give your answers to three decimal places. T= ə sin (a) 8 Ω ?х 8 8 a S2. əx and avnrace it ac RiT (in evact form) h198_FA_2122 ab 0= 9 h Calculato sin (a) -8+5i R E E Submit Assignment 1 m Univ Quit & Save
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