9.02cos(30.83)

解答

9.02 cos (30.8 3^{\circ})

7.74539 \dots

求解步骤

9.02 cos (30.83000 \dots^{\circ})

整理为小数形式

= 7.74539 \dots

e^{c o s (2 π)}

\frac{30}{sin ( 6 0 ^{\circ} )}

cos (\frac{4}{3.3 8 ^{2} + 4 ^{2}})

cos (\frac{π}{2} - \frac{1}{3})

\frac{sin ( 1 8 ^{\circ} )}{cos ( 1 8 ^{\circ} )}