Answer:
1. sin a = ½ , a = 30°
sin 30° = 0.5
= 0.5 = 0.5
≈ ✓
2. cos (angle) = (√2/2), (angle) = 60°
cos 60° = 0.707106781
0.5 = 0.707106781
≈ X
3. tan (beta), (beta) = 45°
tan 45°
= 1
4. cot (beta) = √3, (beta) = 30°
cot 30° = 1.732050808
19.08114 = 1.732050808
≈ X
5. sec a = √2, a = 45°
sec 45° = 1.414213562
1.414213562 = 1.414213562
≈ ✓
6. csc (angle) = √2, (angle) = 30°
csc 30° = 1.414213562
2 = 1.414213562
≈ X
7. sec (beta) = 2√3 / 3, (beta) = 30°
sec 30° = 1.154700538
1.154700538 = 1.154700538
≈ ✓
8. sin (angle) = √3/2, (angle) = 45°
sin 45° = 0.866025403
0.7071060781 = 0.866025403
≈ X
9. tan a = √3, a = 60°
tan 60° = √3
1.732050808 = 1.732050808
≈ ✓
10. sec (angle) = 2, (angle) = 45°
sec 45° = 2
1.41423562 = 2
≈ X
Hope this helps. ^^
