Construct the part of the tangent of the deltoid intercepted by the curve.
Construct the part of the tangent of the deltoid intercepted by the curve.
2三角星形线的两条互相垂直的切线的交点在哪里?
Construct the part of the tangent of the deltoid intercepted by the curve.
2三角星形线的两条互相垂直的切线的交点在哪里?