If cosθ= 3/4 ​ , what are the possible values of θ in radians?

Question

If cosθ=3/4 ​ , what are the possible values of θ in radians?

Answer 1

cosTheta=3/4

Theta=cos^-1(3/4)

Theta= about +/- 0.723 + 2npi

where n= any integer

Theta = 0.732 +n2npi, -0.723 + 2npi radians

=about 41.41 +360n, -41.41 +360n degrees

where n= any integer