Nur Lösungsvorschläge
ASIN steht für arcsin oder sin^{-1}
2. a) α = ASIN(12/15) = 53.13°
2. b) α = ASIN(9.5/11.5) = 55.70°
2. c) β = ATAN(10.9/12) = 42.25°
3. a) α = ACOS(5/8) = 51.32°
3. b) α = ACOS(6/10) = 53.13°
3. c) β = ACOS(7.3/9.2) = 37.49°
4. a) α = ATAN(10/7.5) = 53.13°
4. b) α = ATAN(6.2/8) = 37.78°
4. c) β = ATAN(9.1/10.7) = 40.38°