arccos((sqrt(2))/4)

Lösung

arccos (\frac{2}{4})

1.20942 \dots

Dezimale

69.3

Schritte zur Lösung

arccos (\frac{2}{4})

Vereinfache zur Dezimalform

= 1.20942 \dots

arccos (\frac{10}{11})

sin (2 5^{\circ}) cos (2 0^{\circ}) + cos (2 5^{\circ}) sin (2 0^{\circ})

- csc^{2} (\frac{5 π}{4})

cos (arccos (\frac{6}{7}))

\frac{56}{cos ( 4 8 ^{\circ} )}