2cos45°+sin60°+tan60°×tan30°-2cos60°×cos30°,=2×2
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/25 05:07:25
![2cos45°+sin60°+tan60°×tan30°-2cos60°×cos30°,=2×2](/uploads/image/z/19647092-20-2.jpg?t=2cos45%C2%B0%2Bsin60%C2%B0%2Btan60%C2%B0%C3%97tan30%C2%B0-2cos60%C2%B0%C3%97cos30%C2%B0%EF%BC%8C%3D2%C3%972)
2cos45°+sin60°+tan60°×tan30°-2cos60°×cos30°,
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sin60 sin30 cos60 cos30 sin45 cos45 tan30 tan60 tan45°各等于多少
cos60°+tan60° 2/根号2sin45°+sin60°-2cos45°
tan30° sin30° cos30° tan60° sin60° cos60° tan45°
Sin30°=?;Sin45°=?;Sin60°=?;Cos30°=?;Cos45°=?;Cos60°=?;tan30°
计算:sin60°-cos60°+2sin30°cos30° 根号三sin60°-根号2cos45°+根号8的立方
sin45°/(cos60°-tan60°)+cos45°×cos30°=
三角函数的特殊角的值tan30°cos30°sin30°tan45°cos45°sin45°tan60°cos60°si
计算cos45°-cos60°分之sin30°-2sin45°+根号3tan30°
sin60°×cos60°+sin45°×cos45°-sin30°×cos30°等于多少
sin30° sin45° sin60° cos30° cos45° cos60° 以此类推,都等于多少
根号【cos45°-cos30°】*2-tan60°分之tan45°+sin45°
2sin30°·cos45°-(sin60°)负二次方+根号3tan30°