2sin60°
sin60°是多少
sin60°=根号3/2 如何计算出来
(1)sin60°-tan45°; (2)cos60°+tan60°; (3)根号2 /2 sin45°+sin60°-
计算:sin60°-cos60°+2sin30°cos30° 根号三sin60°-根号2cos45°+根号8的立方
cos60°+tan60° 2/根号2sin45°+sin60°-2cos45°
计算:sin²30°+cos²45°+根号2sin60°×tan45°
2sin30°·cos45°-(sin60°)负二次方+根号3tan30°
2的负1次方+根号3×sin60°-(π+2012)°
|cos45°-sin60°|+根号sin30°
sin30°-sin60°=?
计算:2sin60°+/-3/-根号12-(3分之1)负一
√12*sin60° 等于多少