Sorry for troubling you guys but i keep coming up with an extra 3cosX Prove: 3sinxtanx=8 is the same as 3cos^2x+8cosx-3=0 Any help would be great.
Last edited by Dominic O'L; April 2nd 2009 at 07:32 AM.
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Originally Posted by Dominic O'L Sorry for troubling you guys but i keep coming up with an extra 3cosX Prove: 3sinxtanx=8 is the same as 3cos^2x+8cosx-3=0 Any help would be great. Then cos(x) will disappear and take everything to the other side to get the answer
Originally Posted by Dominic O'L Sorry for troubling you guys but i keep coming up with an extra 3cosX Prove: 3sinxtanx=8 is the same as3cos^2x+8cosx-3=0 Any help would be great. Hi Dominic, I'm not sure if this is the proof you are looking for, but here is something for what it's worth. Now, use that in the 1st equation. Therefore,
Thank you ever so much, i'm in the process of working through maths past papers so your help is much appreciated, AS exam only a month and a half away.
Hello, Dominic O'L Prove: . is the same as We have: . . . Therefore: .
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