cos ? = 0.8829, 0o < ? < 360o solve theta

Question

NEED HELP ASAP

Answer 1

cosθ = 0.8829  so (using inverse function)

θ = cos^-1(0.8829)

which you do on the calculator (in degree mode);

answer: 29.0058^o

 

Another answer is 360-29.0058 (which the calculator does NOT give).