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yesy7
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Find all solutions in the interval [0, 2π).
7 tan^3x  21 tan x = 0
 10 months ago
 10 months ago
yesy7 Group Title
Find all solutions in the interval [0, 2π). 7 tan^3x  21 tan x = 0
 10 months ago
 10 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?
 10 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?
 10 months ago

RolyPoly Group TitleBest ResponseYou've already chosen the best response.1
I don't mind. Please post it :)
 10 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?
 10 months ago
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