cos10°+sin10°/cos10°-sin10°等于多少,化简的详细步骤.谢谢
根号 1+2sin10°cos10° 怎样化简
cos20°cos10°+sin10°sin10°
化简sin10°-根号3*cos10°
求1/sin10°-根号3/cos10°的值.
化简根号下(1-2sin10°cos10°)/[cos10°-根号下(1-sin^2 80°)]
化简求值 tan70°cos10°+根号3sin10°tan70°-2cos40°
(sin10°+sin20°)/(cos10°+cos20°)化简求值
sin40°cos10°-cos40°sin10°
(2cos70°+根号3sin10°)/cos10°
(cos10°-根号3sin10°)/sin20°
化简:根号(1+2sin10°cos10°)
化简:1/(sin10°) —根号3/cos10°