cot(26)

解答

cot (2 6^{\circ})

2.05030 \dots

求解步骤

cot (2 6^{\circ})

整理为小数形式

= 2.05030 \dots

36 cos (4 5^{\circ})

\frac{1}{cos ( 4 0 ^{\circ} )}

tan (arcsin (- \frac{1}{2}) + arccos (- \frac{3}{2}))

\frac{tan ( \frac{5 π}{8} ) - tan ( \frac{3 π}{8} )}{1 + tan ( \frac{5 π}{8} ) tan ( \frac{3 π}{8} )}

tan (\frac{15 π}{6})