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OpenStudy (nali):
how do i know when to put +2n pi or +n pi when solving for sin^2/cos^2/tan^2 ?
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OpenStudy (anonymous):
Not clear.
OpenStudy (nali):
when do i put +2npi and +npi when solving for sin^2 x?
OpenStudy (zzr0ck3r):
inverse trig functions are bounded to two quadrants, sin and tan are 1 and 4 and cos is 1 and 2, so if you do an inverse tan and get something in the 4th but need it to be in the second you add pi
OpenStudy (nali):
i do not get ur answer
OpenStudy (zzr0ck3r):
do you have an example?
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OpenStudy (nali):
ok
OpenStudy (nali):
2 cos 3x-1 = 0
OpenStudy (nali):
solve
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