Answer:
Explanation:
7cos(2t) = 3
cos(2t) = 3/7
2t =
(3/7)
Now, since cos is
, in the interval of 0 - 2pi, there are two possible solutions. If drawn as a circle in a coordinate plane, the two solutions can be found in the first and fourth quadrants.
2t= 1.127
t= 0.56 radians or 5.71 radians
The second solution can simply be derived from 2pi - (your first solution) in this case.