sin²45°-cos60°- tan45°分之cos30° +2sin²60°乘tan60°
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 15:46:22
![sin²45°-cos60°- tan45°分之cos30° +2sin²60°乘tan60°](/uploads/image/z/1589605-61-5.jpg?t=sin%26%23178%3B45%C2%B0-cos60%C2%B0-+tan45%C2%B0%E5%88%86%E4%B9%8Bcos30%C2%B0+%2B2sin%26%23178%3B60%C2%B0%E4%B9%98tan60%C2%B0)
sin²45°-cos60°- tan45°分之cos30° +2sin²60°乘tan60°
sin²45°-cos60°- tan45°分之cos30° +2sin²60°乘tan60°
sin²45°-cos60°- tan45°分之cos30° +2sin²60°乘tan60°
sin²45°-cos60°- tan45°分之cos30° +2sin²60°乘tan60°
=(根号3/2+3根号3/2)/(1/2-1/2-1)=-2根号3