sin60°-1除以sin60°+1
sin60°是多少
(1)sin60°-tan45°; (2)cos60°+tan60°; (3)根号2 /2 sin45°+sin60°-
不用计算器求值:tan30°+sin60°1−cos60°
2的负1次方+根号3×sin60°-(π+2012)°
|cos45°-sin60°|+根号sin30°
(2010•天桥区二模)(1)计算:13+1+(3-π)0-sin60°
sin30°-sin60°=?
计算:2sin60°+/-3/-根号12-(3分之1)负一
√12*sin60° 等于多少
【sin30°/(sin60°-cos45°)】—(根号下(1—tan60°)²)—tan45°
计算题(根号下sin²60°-2sin60°+1)+绝对值1-3tan30°
(2011•江苏模拟)(1)计算:|1-3|-sin60°+(-25)0-124.