1.已知α为锐角,且sin(α-10°)=根号3/2,则α=2.在△ABC中,∠A=105°,∠B=45°,tanC的值为?3.sin45°×cos45°-tan30°4.3tan30°×sin60°-cos60°×tan45°5.sin²30°+cos²45°+根号2sin60°×tan45°

1.已知α为锐角,且sin(α-10°)=根号3/2,则α=2.在△ABC中,∠A=105°,∠B=45°,tanC的值为?3.sin45°×cos45°-tan30°4.3tan30°×sin60°-cos60°×tan45°5.sin²30°+cos²45°+根号2sin60°×tan45°
1.已知α为锐角,且sin(α-10°)=根号3/2,则α=
2.在△ABC中,∠A=105°,∠B=45°,tanC的值为?
3.sin45°×cos45°-tan30°
4.3tan30°×sin60°-cos60°×tan45°
5.sin²30°+cos²45°+根号2sin60°×tan45°

1.已知α为锐角,且sin(α-10°)=根号3/2,则α=2.在△ABC中,∠A=105°,∠B=45°,tanC的值为?3.sin45°×cos45°-tan30°4.3tan30°×sin60°-cos60°×tan45°5.sin²30°+cos²45°+根号2sin60°×tan45°
1:70度
2:根号3/3
3:1/2-根号3/3
4:1
5:3/4+根号6/2