Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
← 55 members online
 0 viewing
yesy7
Group Title
Find all solutions in the interval [0, 2π).
7 tan^3x  21 tan x = 0
 8 months ago
 8 months ago
yesy7 Group Title
Find all solutions in the interval [0, 2π). 7 tan^3x  21 tan x = 0
 8 months ago
 8 months ago

This Question is Closed

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
Let u = tanx Then, the equation becomes \[7u^321u=0\]Factorize the left, you'll get\[7u(u^23) = 0\]Can you solve u from here?
 8 months ago

yesy7 Group TitleBest ResponseYou've already chosen the best response.1
I just did some of the work on scratch paper from the help of the lessons. Would you mind double checking my work?
 8 months ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
I don't mind. Please post it :)
 8 months ago

yesy7 Group TitleBest ResponseYou've already chosen the best response.1
I got 0, pi/3, 2pi/3, pi, 4pi/3, 5pi/3?
 8 months ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.