• 2022-07-25
    求直线[tex=6.929x2.786]7EJHVCtO2IWq3KpdB+jQsphVXBGNiuZV4DCgcOGs4rV3xBM0iJA3r87Ig8LvbWbCpunjM9+MmuLaBUGuka1ZFw==[/tex],在平面[tex=5.714x1.286]JNGTfvf9WREp6OanBKHgpw==[/tex]上的投影直线方程.