tan30°+2sin60°*cos0°+tan45°*sin90°+cos60°的解题过程和答案
问题描述:
tan30°+2sin60°*cos0°+tan45°*sin90°+cos60°的解题过程和答案
答
tan30°+2sin60°*cos0°+tan45°*sin90°+cos60° = (√3/3) + 2√3/2 * 1 + 1 * 1 + (1/2) = 1/3 + √3 + 1 + 1/4 = 19/12 + √3