cos60°+tan60° 2/根号2sin45°+sin60°-2cos45°
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cos60°+tan60° 2/根号2sin45°+sin60°-2cos45°
cos60°+tan60° 2/根号2sin45°+sin60°-2cos45°
cos60°+tan60° 2/根号2sin45°+sin60°-2cos45°
cos(60°)+tan(60°) = 2.2320508075689
2分之根号2*sin45°+sin60°-2cos45°=1/2+根号3/2-根号2
1/2cos60°+根号2sin45°/tan30°-根号(1-tan60°)^2
cos60°+tan60° 2/根号2sin45°+sin60°-2cos45°
sin^2 45°-cos60°+tan60°*cos30°
cos60°+tan60°=
tan45°+5cot30°-6tan60°-2cos60°
tan60°—(cot45°+2sin60°)分之(4cos60°)
计算,cos60°+√2/2sin45°+√3tan60°
sin²45°-cos60°- tan45°分之cos30° +2sin²60°乘tan60°
3|tan30°-1|+sin平方60°-(cos60°-1)负2次方*tan45°+tan60°=?
计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-计算:(1)cos45°=sin45°=_____;(2)sin30°+cos60°+tan45°=_____;(3)sin60°/cos60°=_____;(4)tan60°-tan30°=_____;
(根号下(1-2tan60°+tan^2 60°))-tan60°
根号下(1-2tan60°+tan^260°)-tan60°计算过程
tan45°-cos60°/sin60°减tan60°
sin45°-cos60°+tan60°怎么解
tan60度-cos60度比sin30度·tan45度+根号下tan30度的平方-2tan30度+1
若α=β,sinα=3/5,则cosβ= 已知:sinA=5/13,则sin(90°-A)= 2sin45°+2cos60°+tan45°-根号3tan60°一共三题!有点密密麻麻若α=β,sinα=3/5,则cosβ=已知:sinA=5/13,则sin(90°-A)= 2sin45°+2cos60°+tan45°-根号3tan60°
2分之1cos60°-根号2sin45°
(1)cos60°-sin^2 45°+sin^2 45°+1/4tan^2 30°+cos30°-sin30°(2)sin30°/(sin60°-cos45°)-(根号下(1-tan60°)^2)-tan45°第一题是这个(1)cos60°-sin^2 45°+1/4tan^2 30°+cos30°-sin30°