√(3)sin(-1200°)tan11/6π-cos585°tan(-37/4π)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/19 15:07:49
√(3)sin(-1200°)tan11/6π-cos585°tan(-37/4π)√(3)sin(-1200°)tan11/6π-cos585°tan(-37/4π)√(3)sin(-1200°)t

√(3)sin(-1200°)tan11/6π-cos585°tan(-37/4π)
√(3)sin(-1200°)tan11/6π-cos585°tan(-37/4π)

√(3)sin(-1200°)tan11/6π-cos585°tan(-37/4π)
=√3sin240tan5π/6-cos135tan(-π/4)
=√3(-√3/2)(-√3/3)-(-√2/2)(-1)
=√3/2-√2/2
=(√3-√2)/2