(sec(37)+tan(37))/(sec(16)+tan(16))

解答

\frac{sec ( 3 7 ^{\circ} ) + tan ( 3 7 ^{\circ} )}{sec ( 1 6 ^{\circ} ) + tan ( 1 6 ^{\circ} )}

1.51139 \dots

求解步骤

\frac{sec ( 3 7 ^{\circ} ) + tan ( 3 7 ^{\circ} )}{sec ( 1 6 ^{\circ} ) + tan ( 1 6 ^{\circ} )}

整理为小数形式

= 1.51139 \dots

- sin (- \frac{5 π}{3})

arctan (- 2.36)

arcsin (\frac{1}{9})

cos (\frac{31 π}{12})

cos (arccot (\frac{4}{5}) - arcsin (- \frac{4}{5}))