(1200)/(tan(21))

解答

\frac{1200}{tan ( 2 1 ^{\circ} )}

3126.10687 \dots

求解步骤

\frac{1200}{tan ( 2 1 ^{\circ} )}

整理为小数形式

= 3126.10687 \dots

30 sin (5 0^{\circ})

arcsinh (3)

1.33 \cdot sin (4 5^{\circ})

sin (10 5^{\circ}) sin (7 5^{\circ})

250 sec^{2} (\frac{π}{3})