(cos(0.002)-1)/(0.002^2)

解答

\frac{cos ( 0.002 ) - 1}{0.00 2 ^{2}}

- 0.49999 \dots

求解步骤

\frac{cos ( 0.002 ) - 1}{0.00 2 ^{2}}

整理为小数形式

= - 0.49999 \dots

\frac{cos ( 2 ( 0.001 ) ) - cos ( 0.001 )}{0.00 1 ^{2}}

cot (arcsin (\frac{12}{13}))

2 cos (6)

sin^{2} (\frac{3 π}{8})

tan (\frac{12}{13})