Ask
your own question, for FREE!
Mathematics
53 Online
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!
tan x (tan^2 +2tan+1)=0 or tanx=0 or (tanx +1)=0 solve it for x
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
ShinePrincess:
Write a function that will create the following transformation. Shift f(x) down 3
forgetmylife:
Only the real understand ud83eudd26ud83cudffdu2642ufe0f I'm tired. Tired of the constancy, the constancy of judgment.
rishavraj:
Just trying to find a friend. We met on openstudy, her nickname on there was something "tarantula".
40 minutes ago
0 Replies
0 Medals
10 hours ago
2 Replies
1 Medal
1 hour ago
4 Replies
0 Medals