# Math Help - Solving trig equations

1. ## Solving trig equations

F(t)=-sin2t + 2cos2t=0

What is the value of t for this equation ?

2. Originally Posted by nyasha
F(t)=-sin2t + 2cos2t=0

What is the value of t for this equation ?
2cos(2t) = sin(2t)
Or
tan(2t) = 2.
Do you want to find the value of t in degrees?
In that case
2t = arctan(2). Then find t.