Question

Please help me solve this:

find the value of θ in [0°,90°] that satisfies the given statement secθ=1.3591392.

Answer 1

sec(theta) = 1.3591392 => cos(theta) = 1 / 1.3591392 = 0.7357598103

=> theta = arccos (0.7357598103) = 0.744 rad = 42.6285 degress