cos^2(20)-sin^2(20)

Lösung

cos^{2} (2 0^{\circ}) - sin^{2} (2 0^{\circ})

0.76604 \dots

Schritte zur Lösung

cos^{2} (2 0^{\circ}) - sin^{2} (2 0^{\circ})

Vereinfache zur Dezimalform

= 0.76604 \dots

arcsin (\frac{3 π}{4})

2 sin (1)

sin (\frac{11 π}{5})

cos (arccos (0.4))

\frac{16 sin ( 9 3 ^{\circ} )}{sin ( 2 9 ^{\circ} )}