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OpenStudy (anonymous):
Find all the angles between 0 and 2π inclusive for which: 2tan2tanx=1-tan²x & tan2x=3tanx Pls help me to solve the equations. Thanks a loooot!!!!!
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OpenStudy (anonymous):
2tan(2tan(x)) or 2tan(x)*2tan(x)?
OpenStudy (anonymous):
guessing the former
OpenStudy (anonymous):
2tan(2tan(x)) @larryboxaplenty
OpenStudy (anonymous):
I don't remember, sorry. I do remember drawing a triangle for something like tan(tan(5pi/4)), but that was given. Wolframalpha gave me the answers, but I don't remeber how to actually solve them, sorry
OpenStudy (anonymous):
it's ok. never mind.
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