sin45°-cos30°+tan60°等于多少?(2)sin60°+tan45°-cos30°(3)cos60°-tan30°+sin30°
问题描述:
sin45°-cos30°+tan60°等于多少?
(2)sin60°+tan45°-cos30°
(3)cos60°-tan30°+sin30°
答
sin45°-cos30°+tan60°等于多少?
(2)sin60°+tan45°-cos30°
(3)cos60°-tan30°+sin30°