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yesy7
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Find all solutions in the interval [0, 2π).
7 tan^3x  21 tan x = 0
 9 months ago
 9 months ago
yesy7 Group Title
Find all solutions in the interval [0, 2π). 7 tan^3x  21 tan x = 0
 9 months ago
 9 months ago

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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?
 9 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?
 9 months ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
I don't mind. Please post it :)
 9 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?
 9 months ago
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