Question

Интеграл 0 и -п/6 cosxdx плиз помогите

Answer 1

$intlimits_{-frac{pi}{6}}^0 {cosx} , dx =sinx, |_{-frac{pi}{6}}^0=sin0-sin(-frac{pi}{6})=0+sinfrac{pi}{6}=frac{1}{2}$