写出柱面参数方程,其母线平行矢量[tex=3.714x1.357]5vSeeaQx81uRzpqyFoK0zA==[/tex],而准线为方程[tex=9.286x1.429]zFxwoj9rxNTT69N3h+a2G+vLIGVEDqlxj9DIHdhNplay48td7XCGUGJ4xiPOJ6e5[/tex]
举一反三
- 求柱面方程:准线为[tex=4.786x3.357]7EJHVCtO2IWq3KpdB+jQsvMilYoyf6TFxlIO8MoH9z72KBfHNOUea2ZuFceOOsLi/Hf6fNwGQ4ePWund8+1o2Q==[/tex]母线平行于[tex=0.571x0.786]ZKO2xs0EgSemzoH7MSmYTA==[/tex]轴.
- 求柱面方程:准线为:[tex=4.429x2.786]fnpmC2J6JmQBLyo5NmGAzwzBMK/WUHTHr/lTBlf+JkPzOjr5/raEwKZrJtHe+A3XGNn7AyJuuqagEboFuvzmfA==[/tex],母线平行于[tex=0.857x1.0]Qp/gQKinG9+dWvJ2JrEi+g==[/tex]轴。
- 已知准线为立方抛物线[tex=4.357x3.357]7EJHVCtO2IWq3KpdB+jQsvgTi6o8l6RMVVkBNaCDPye99W43V4cewvxu1LTBDxb+k+PzrgfsEUAW0QWANv7sVA==[/tex]①求以[tex=3.5x1.357]vwaWSHdmk4fd5/tP7O5RpA==[/tex]为母线方向向量的柱面方程;②求以[tex=3.071x1.357]la0wJMlHnkm5QolDdjyrzg==[/tex]为顶点的锥面方程.
- 方程2(x-3)+5=9的解是(). A: x=4 B: x=5 C: x=6 D: x=7
- 已知柱面的准线为:[tex=14.0x3.357]fnpmC2J6JmQBLyo5NmGAz56cgF+MRi8/pFjSehCSEI3VcKvKFI2ych58/T3psKqYFw5Rr5Ql372v3B1N6eXaePzOBY0oFkJNLsqVqsZhzvj9grVXZGgcKfa+jeS6EiLu[/tex],且(1)母线平行于[tex=0.571x0.786]c5VsltFnl9nO0qB/vNKOWA==[/tex]轴;(2)母线平行于直线[tex=4.0x1.0]jnFEkxpfY1T6qyzQowf+yg==[/tex],试求这些柱面的方程.