化简 g(-sin(pi/(12))-(0.12)cos(pi/(12)))

解答

化简

g (- sin (\frac{π}{12}) - (0.12) cos (\frac{π}{12}))

- 0.37473 \dots g

求解步骤

g (- sin (\frac{π}{12}) - (0.12) cos (\frac{π}{12}))

去除括号:

(a) = a

= g (- sin (\frac{π}{12}) - 0.12 cos (\frac{π}{12}))

sin (\frac{π}{12}) = \frac{6 - 2}{4}

0.12 cos (\frac{π}{12}) = 0.12 \cdot \frac{6 + 2}{4}

= (- 0.12 \cdot \frac{6 + 2}{4} - \frac{6 - 2}{4}) g

化简

= - 0.37473 \dots g

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