cos(110)cos(50)-sin(110)sin(50)

Lösung

cos (11 0^{\circ}) cos (5 0^{\circ}) - sin (11 0^{\circ}) sin (5 0^{\circ})

- 0.93969 \dots

Schritte zur Lösung

cos (11 0^{\circ}) cos (5 0^{\circ}) - sin (11 0^{\circ}) sin (5 0^{\circ})

Vereinfache zur Dezimalform

= - 0.93969 \dots

arccos (9)

arcsin (\frac{6}{11})

12 cos (0)

tan (\frac{8}{15})

cos (\frac{7 π}{12}) - cos (\frac{π}{12})