Recent content by SarahJeen

Re: Solve the following equations algebraically. Give solutions as exact values where 0≤x<2π I put a new solution without the funny varibles - - - Updated - - - Yes ? am I correct - - - Updated - - - Would you mind showing the correct solution now? since I have my input I...

Re: Solve the following equations algebraically. Give solutions as exact values where 0≤x<2π secound equation? :) 2sin^2x - sin x - 1 = 0? Let m = sin x 2m^2 - m - 1 = 0 (m+1)(2m-1) = 0 m = -1 sin x = -1 x = 3pi/2 m = 1/2 sin x = 1/2 x = pi/6 or 5pi/6 - - - Updated - - - 2cosx = 1 cosx = .5

Re: Solve the following equations algebraically. Give solutions as exact values where 0≤x&lt;2π I think I got it now :) 2tanxcosx = tan 2tanxcosx - tanx = 0 tanx(2cosx - 1) = 0 tanx = 0, ===> x = 0, x=pi, and x=2pi >==========< ANSWER Also, 2cosx -1 = 0, ===> cosx = 1/2 x = pi/3, and...

Re: Solve the following equations algebraically. Give solutions as exact values where 0≤x&lt;2π Okay :) well if we subtract tan from both sides 2tanxcosx-tanx we would get 1tanxcosx? correct

Re: Solve the following equations algebraically. Give solutions as exact values where 0≤x&amp;lt;2π Ooo.. Thanks :) I will follow the guidelines I'am just struggling at this concept that is the reason for my... - - - Updated - - - Is this a good start? 2tanxcosx-tanx=0 ...

The answer I got was: If I'am wrong please explain the correct solution and explain your reasoning thanks sarah (Sun)

Re: Solve the following equations algebraically. Give solutions as exact values where 0≤x&lt;2π If someone could show the solutions for these 2 and also explain it I would appreicate it very much :) (Bandit)

Re: Solve the following equations algebraically. Give solutions as exact values where 0≤x&lt;2π if it was radians when sin(x) = 0 tan(x) = 0... Reasoning for that is that tan(x) = sin(x)/cos(x) so if sin(x) = 0 then tan(x) so sin(x) = at pi and 2pi... if I'm correct... - - - Updated - - -...

Re: Solve the following equations algebraically. Give solutions as exact values where 0≤x<2π could we divide both sides by tan?

Solve the following equations algebraically. Give solutions as exact values where 0≤x<2π Solve the following equations algeraically. Give solutions as exact values where 0≤x<2π a)2tanxcosx=tanx b) - - - Updated - - - Any Help would be much appreciated thanks sarah :) (Inlove)

Thanks Mark would you mind helping me with some other question add me on skype sunshadersg thanks sarah.