2sin30°·cos45°-(sin60°)负二次方+根号3tan30°
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/03 04:11:17
2sin30°·cos45°-(sin60°)负二次方+根号3tan30°
2sin30°·cos45°-(sin60°)负二次方+根号3tan30°
2sin30°·cos45°-(sin60°)负二次方+根号3tan30°
=2×1/2×√2/2-(2/√3)²+√3×√3/3
=√2/2-4/3+1
=√2/2-1/3
sin30°+cos45°
(cos45°sin30°)÷(cos45°+sin30°)
根2sin30°+tan60°-cos45°=
sin30°-二分之根号2cos45°+三分之一
sin30°+(cos45°)∧2+tan60°-cot3°+sin45°cos45°
sin30°·tan45°+根号2·cos45°+sin60°·tan60°
2sin30°·cos45°-(sin60°)负二次方+根号3tan30°
2sin30°-3tan45°·cos45°+4cos60°
|cos45°-sin60°|+根号sin30°
sin45°×cos45°-sin30°
sin30°-tan30°+cos45°
sin30°/(cos45°—cos60°)—2cos45°+根号3tan30°等于多少?
计算:2sin30°+2cos60°+3tan45°、tan²60°+4sin30°×cos45°
sin30°+1/2(sin45°+cos45°)-sin^2 20°-cos^2 20°
计算cos45°-cos60°分之sin30°-2sin45°+根号3tan30°
1/2*tan60°+根号2/2*cos45°- sin30°*cos30°
1/2cos30°+根号2/2cos45°-sin30°-sin45°
1/2sin30°+根2/2cos45°+sin60°*cos60°=?