on 2 remember that sin^2 x = 1-cos^2 x, then use the quadratic formula,or factor.
on 3, factor
on 4,try squaring both sides, then substitue to get rid of the cos^2
Trig - Find all of the solutions between 0 and 2pi: 2sin(x)^2 = 2 + cos(x)
trig - how can i find all the exact solutions to the equation : 2cos^2x + 3sinx...
trig - Find all solutions in the interval [0,2pi]. sin 2x + sin x = 0
Trig - I need help, I don't remember what to do. Find all solutions of the ...
trig - 2sin(x)cos(x)+cos(x)=0 I'm looking for exact value solutions in [0, 3...
Trig - How to find all solutions for 3tan^22x-1=0?
trig - how do you find all the solutions when cos x = .75
trig - find all solutions of the equation tan(sq)x=1
trig - find all solutions of 2sinx=1-cosx in the interval from 0 to 360
TRIG HELP - find the exact solutions over the interval tanx = 1 all real x