Can someone please help me solve the following trig equations please? Thanks

1-tan^2(x)/1+tan^2(x) + cos(x) = 0

(sqrt(3)+1)cos^2(x) - 1 = (sqrt(3)-1)sin(x)cos(x)

Thanks heaps

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- September 21st 2009, 02:18 AMdeltaxrayTrigonometric equation
Can someone please help me solve the following trig equations please? Thanks

1-tan^2(x)/1+tan^2(x) + cos(x) = 0

(sqrt(3)+1)cos^2(x) - 1 = (sqrt(3)-1)sin(x)cos(x)

Thanks heaps - September 21st 2009, 03:39 AMmathaddict
- September 21st 2009, 04:30 AMdeltaxray
Thanks Mate. (Happy)

- September 21st 2009, 04:46 AMGrandad
- September 21st 2009, 05:26 AMdeltaxray
Thanks granddad. I got it (Nod)

- September 21st 2009, 05:50 AMpacman
by inspection, pi is a root to the equation, the other 2 roots are found already; x = {pi/3, pi, 5pi/3}

the graph below confirms it