Liz Posted January 19, 2009 Share Posted January 19, 2009 (edited) Could you help me on a problem? i haven't seen much of inverse trigonometric functions before, so i'm a bit confoosed! 1.) Ex: Let g (x )=20+14 Sin(2x ). Which of the following solves g (x )=27? i've managed to get it to (1/2)=sin(2x), but all answers are in arcsine... answer choices, if it helps at all: (1/2) ArcSin(1/2) + π ArcSin(1/4) + 2π (1/7) ArcSin(2/3) + 4π there is no solution and could you please provide an explanation? EDIT: Never mind. I already figured it out! Edited January 19, 2009 by Aphrodite Quote Link to comment Share on other sites More sharing options...
Judge Judy Posted January 19, 2009 Share Posted January 19, 2009 OMG...I remember when I had to do this....I hated it... Still don't really understand the basic concept. Quote Link to comment Share on other sites More sharing options...
Donatello Posted January 19, 2009 Share Posted January 19, 2009 OMG...I remember when I had to do this....I hated it...Still don't really understand the basic concept. This. I fucking hate math( at least I did when I was in middle school, then somehow, it got easier as I got older.) I'm more of a biology and chemistry guy. Quote Link to comment Share on other sites More sharing options...
Judge Judy Posted January 19, 2009 Share Posted January 19, 2009 This. I fucking hate math( at least I did when I was in middle school, then somehow, it got easier as I got older.)I'm more of a biology and chemistry guy. I understood how to answer the questions but..there is so much to remember and a lot to practice that...*brain explodes* Quote Link to comment Share on other sites More sharing options...
Destiny Hero Posted January 19, 2009 Share Posted January 19, 2009 My brain sploded. Quote Link to comment Share on other sites More sharing options...
Donatello Posted January 19, 2009 Share Posted January 19, 2009 I understood how to answer the questions but..there is so much to remember and a lot to practice that...*brain explodes* Which is why most math teachers are fucking insane. jk (or not....) Quote Link to comment Share on other sites More sharing options...
Lord Raven Posted January 20, 2009 Share Posted January 20, 2009 (edited) Sin2x = 1/2, yeah. x = 1/2 arcsin 1/2 (solve for x, lol), I have no clue where the + n comes from though. You could always try "there is no solution" because where the +n comes from is beyond me. It's a relatively easy problem, imo... EDIT: Oh, it's a pi. What answer was it :? Edited January 20, 2009 by Nathan Graves Quote Link to comment Share on other sites More sharing options...
Liz Posted January 20, 2009 Author Share Posted January 20, 2009 Sin2x = 1/2, yeah.x = 1/2 arcsin 1/2 (solve for x, lol), I have no clue where the + n comes from though. You could always try "there is no solution" because where the +n comes from is beyond me. It's a relatively easy problem, imo... EDIT: Oh, it's a pi. What answer was it :? answer was (1/2)arcsine(1/2) + pi Quote Link to comment Share on other sites More sharing options...
California Mountain Snake Posted January 22, 2009 Share Posted January 22, 2009 This topic explains a lot about the people who post on this board. Thanks. Quote Link to comment Share on other sites More sharing options...
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