化简asin0°+bcos90°+ctad180°
问题描述：
化简asin0°+bcos90°+ctad180°
答
asin0°+bcos90°+ctad180°
=0+0+0=0
化简asin0°+bcos90°+ctad180°
asin0°+bcos90°+ctad180°
=0+0+0=0