menu
Qamnty
Login
Register
My account
Edit my Profile
Private messages
My favorites
Cosxsinx-2cosx=0 I dont know how to solve this
Ask a Question
Questions
Unanswered
Tags
Ask a Question
Cosxsinx-2cosx=0 I dont know how to solve this
asked
Oct 23, 2019
226k
views
5
votes
Cosxsinx-2cosx=0
I dont know how to solve this
Mathematics
high-school
Phuong
asked
by
Phuong
8.2k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
1
vote
factor out cosx: cosx(sinx-2)=0
cosx=0 or sinx-2=0
cosx=0 or sinx=2
the largest value of sinx is 1, sinx will never be 2, so cosx=0, x=π/2 or 3π/2 are the two answers.
Smoke
answered
Oct 30, 2019
by
Smoke
9.1k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Dec 1, 2024
64.6k
views
Prove the identity. tanx(1+cot^(2)x)=(1)/(cosxsinx)
Samjaf
asked
Dec 1, 2024
by
Samjaf
8.3k
points
Mathematics
high-school
1
answer
0
votes
64.6k
views
asked
Jun 7, 2024
209k
views
Simplify the expression cosxtanx−sinxcos2x. A. cosxsinx B. sinxcosx C. sin²x D. cos²x
Qrazi
asked
Jun 7, 2024
by
Qrazi
8.0k
points
Mathematics
high-school
1
answer
4
votes
209k
views
asked
Oct 11, 2024
61.6k
views
Consider a function f(x) , with domain x∈[0,2π] , and derivatives given by f²(x)=cosxsinx-2 and f²²(x)=-1 2sinx(sinx-2)2. What is the question?
Matt Carlotta
asked
Oct 11, 2024
by
Matt Carlotta
8.2k
points
Mathematics
high-school
1
answer
4
votes
61.6k
views
Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qamnty