I can not figure out how to work this Trig Identity problem 2cos2θ+sinθ=1 4/1/2014 | JaLynn from Columbia, MO | 2 Answers | 0 Votes
cos2(x)-cos6(x)=0 find the solutions of the equation in the interval [0, 2pi) 4/8/2013 | Corinne from Seneca, IL | 2 Answers | 0 Votes
cot^2x+cscx-1=0 find solutions with trigonometric identities 1/24/2013 | Milena from Alexandria, VA | 1 Answer | 0 Votes