Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

Find the exact solutions to each equation for the interval 0<=x<2pi. tan^3 x + 2tan^2 + tan x=0

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

tan x (tan^2 +2tan+1)=0 or tanx=0 or (tanx +1)=0 solve it for x

myininaya (myininaya):

tanx(tan^2x+2tanx+1)=0 tanx=0 tan^2x+2tanx+1=0 tanx=0 => remember tanx=sinx/cosx (so we are looking for where sinx is zero) so x=0, pi ,and 2pi now we also have tan^2x+2tanx+1=0 let u=tanx u^2+2u+1=0 (u+1)(u+1)=0 u+1=0 u=-1 but remember tanx=u tanx=-1 sinx/cosx=-1 we are looking for where sinx and cosx are the opposite so x=3pi/4,7pi/4

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

Princesita143:
Jeremiah is working on a model bridge he needs to create triangular components an

25 minutes ago
1 Reply
0 Medals

kaibeth:
Where are ribosomes made? https://us-static.z-dn.net/files/d8c/fae87da0aa472c2e57ee80a7991297cf.

2 hours ago
9 Replies
2 Medals

hhanan:
Why did the founding fathers include "freedom of press" in the first amendment of the U.

4 hours ago
2 Replies
0 Medals

hhanan:
What is the obligation of the press regarding government actions and policies?

4 hours ago
7 Replies
0 Medals

hhanan:
Even before the American Revolution, the press was crucial because

3 hours ago
4 Replies
1 Medal

hhanan:
What are the two main responsibilities that most Americans assign to the news med

4 hours ago
2 Replies
0 Medals

shawonda:
Angelina is a waitress at an upscale restaurant which automatically calculates a 20% tip for the waitresses.

4 hours ago
3 Replies
3 Medals