求值:1/sin50°+根号3/cos50°
来源:学生作业帮助网 编辑:六六作业网 时间:2024/10/06 22:50:56
求值:1/sin50°+根号3/cos50°求值:1/sin50°+根号3/cos50°求值:1/sin50°+根号3/cos50°1/sin50°+√3/cos50°=(√3sin50°+cos50
求值:1/sin50°+根号3/cos50°
求值:1/sin50°+根号3/cos50°
求值:1/sin50°+根号3/cos50°
1/sin50°+√3/cos50°
=(√3sin50°+cos50°)/(sin50°cos50°)
=4sin(50°+30°)/sin100°
=4sin80°/sin100°
=4sin(180°-100°)/sin100°
=4sin100°/sin100°
=4
4
原 式=2*((1/2) /sin50 + (sqrt(3)/2)/cos50)=2*(sin30/sin50 + cos30/cos50)=4*(sin80/sin100)=4*((sin90*cos10-cos90*sin10) /(sin90*cos10+cos90*sin10))=4*(cos10/cos10)=4
求值:[2sin50°+sin80°(1+√3tan10°)]/√2cos5°
2sin50+cos10(1+根号3tan10)/根号2cos5
计算2sin50°+(1+根号3*tan10°)cos10°/根号2/cos5°
[2sin50°+cos10°(1+根号3tan10°)]÷根号2cos5°
求值:1/sin50°+根号3/cos50°
sin50°(1+根号3tan10°)求值、
求值{cos40°+sin50°(1+根号3tan10°)}/1+sin50°
求值:2sin50°+cos10°(1+根号3tan10°)/根号下1+2sin50°cos50°
求值sin50°(1+根号3倍tan10°)sin50°(1+根号3倍tan10°)
求值题.thanks.14.求值:sin50°×〔1+(根号3)tan10°〕
求值(cot20°-根号3)(cos5°+sin5°)(cos5°-sin5°),要详程
求值:【2sin50°+sin10°(1+根号3tan10°)】根号2sin280°
求值:(tan10°-根号3)cos10°÷sin50°
化简求值:sin50度[1+(根号3)tan10度]
求值:sin50度(1+根号3倍tan10度).
求值:sin50º(1+根号3×tan10º)
〔2sin50度+cos10度*(1+根号3*tan10度)〕/(根号2*cos5度)
求值sin50°(1+根号3tan10°)(过程)看不清!