you should review your basic standard triangles:
45-45-90: sides 1:1:√2
30-60-90: sides 1:√3:2
Each problem here will have two solutions, in the quadrants where the named function is positive or negative.
Solve the equations below exactly. Give your answers in radians, and find all possible values for t in the interval 0≤t≤2π. If there is more than one answer, enter your solutions in a comma separated list.
(a) sin(t)=2/√2 when t=
(b) cos(t)=1/2 when t=
(c) tan(t)=−1 when t=
1 answer