Question

Find the measure to the nearest degree

1. tan A= 1.6643

2. sin A= 0.8480

3. cos A= 0.3420

4. cos U= 0.4695​

Answer 1

1. tan A= 1.6643

A = tan^-1(1.6643)

A = 59° , 239°

2. sin A= 0.8480

A = sin^-1(0.8480)

A = 58°, 122°

3. cos A= 0.3420

A = cos^-1(0.342)

A = 1° , 359°

4. cos U= 0.4695​

U = cos^-1(0.4695)

U = 62°, 298°

Answer 2

Please see the attached pictures for the full solution.