利用向量及其运算解立体几何题

Using Vector and Its Operation to Solve the Solid Geometric Problems

在高中引出向量及其运算,使高中数学与高等数学联系更为紧密。利用向量及其运算知识解立体几何求值题,进一步反映了立体几何中有关概念的本质,可避免添加辅助线或辅助面等,亦可使方法和过程更为简明。

The vector and its operation are introduced in the period of the senior middle school, which touches closer with the higher mathematics. Using vector and its operation to solve the solid geometry, reflect the essence of the relative concepts in the solid geometry, and we can avoid adding the auxiliary lines or auxiliary planes, and make the methods and process simpler.