ok, i am supposed to solve

2 sin 2 x = 3(cos 2x + sin x -1) for 0 ≤ x < pi (so in radians)

please help me out, i suck at these sort of questions

any help at all? i'm goin to have to move this urgent

Printable View

- November 16th 2008, 08:14 AMandyp999need some help with solving a trig equation
ok, i am supposed to solve

2 sin 2 x = 3(cos 2x + sin x -1) for 0 ≤ x < pi (so in radians)

please help me out, i suck at these sort of questions

any help at all? i'm goin to have to move this urgent - November 16th 2008, 11:14 AMskeeter
- November 16th 2008, 11:21 AMandyp999
sorry for the late reply but yes that is correct

- November 16th 2008, 12:01 PMskeeter

at

that was the "easy" solution ... the next is a pain in the @$$ ...

one of these two solutions is extraneous ... the solution that works is not pretty, you'll need a calculator to determine x.

which makes me ask the question ... were you allowed to use a calculator in solving this equation in the first place? - November 16th 2008, 12:04 PMandyp999
yes i was allowed a calculator haha

- November 16th 2008, 12:10 PMskeeter
- November 16th 2008, 12:13 PMandyp999
sorry did u not kno? sorry if i caused you problems