Login
Remember
Register
EasyElimu Questions and Answers
Questions
Unanswered
Tags
Users
Ask a Question
Ask a Question
Given that sin(θ+30°)=cos2θ, find the value of cos(θ+40°).
0
votes
1.7k
views
asked
Jun 17, 2021
in
Mathematics Form 2
by
anonymous
Given that sin(θ+30°)=cos2θ, find the value of cos(θ+40°).
trigonometry
Please
log in
or
register
to answer this question.
2
Answers
0
votes
answered
Jun 17, 2021
by
anonymous
selected
Jan 30, 2023
by
easyadmin
Best answer
sin(θ+30°)=cos2θ
θ+30+2θ=90
∴ cos 60=0.5
Please
log in
or
register
to add a comment.
0
votes
answered
Dec 7, 2023
by
0755626XXX
60
Please
log in
or
register
to add a comment.
Related questions
0
votes
1
answer
Given that cos θ= –0.8070 , find θ for 0≤θ≤720
asked
Aug 2, 2021
in
Mathematics Form 2
by
anony mous
linear inequalities
trigonometry
0
votes
2
answers
Given that sin (x + 60)° = Cos (2x)°, find tan (x + 60)°.
asked
Jul 21, 2021
in
Mathematics Form 3
by
anonymous
trigonometry
0
votes
1
answer
Solve the equation. Sin y2 = Cos 26˚
asked
Aug 27, 2021
in
Mathematics Form 2
by
anony mous
trigonometry
0
votes
1
answer
Given that sin 75° = -6+√2 Simplify 4 Sin75°
asked
Jun 18, 2021
in
Mathematics Form 2
by
anonymous
trigonometry
0
votes
1
answer
Solve the equation sin2θ - cos2θ = - 1/2 for 0°≤ θ ≤ 360°
asked
Jun 18, 2021
in
Mathematics Form 3
by
anony mous
trigonometry
Welcome to EasyElimu Questions and Answers, where you can ask questions and receive answers from other members of the community.
Categories
All categories
Mathematics
(632)
Mathematics Form 1
(257)
Mathematics Form 2
(174)
Mathematics Form 3
(175)
Mathematics Form 4
(26)
English
(287)
Kiswahili
(559)
Chemistry
(663)
Physics
(604)
Biology
(659)
Geography
(537)
History
(568)
CRE
(365)
IRE
(53)
Agriculture
(519)
Business Studies
(379)
Computer Studies
(20)
Home Science
(60)
General Questions
(432)
6.4k
questions
9.6k
answers
6
comments
590
users
...