x^1/2 + y^1/2 =a^1/2 ,设x=acos^4θ 化为参数方程把x^1/2 + y^1/2 =a^1/2 化为参数方程
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 02:25:33
![x^1/2 + y^1/2 =a^1/2 ,设x=acos^4θ 化为参数方程把x^1/2 + y^1/2 =a^1/2 化为参数方程](/uploads/image/z/6724315-19-5.jpg?t=x%5E1%2F2+%2B+y%5E1%2F2+%3Da%5E1%2F2+%2C%E8%AE%BEx%3Dacos%5E4%CE%B8+%E5%8C%96%E4%B8%BA%E5%8F%82%E6%95%B0%E6%96%B9%E7%A8%8B%E6%8A%8Ax%5E1%2F2+%2B+y%5E1%2F2+%3Da%5E1%2F2+%E5%8C%96%E4%B8%BA%E5%8F%82%E6%95%B0%E6%96%B9%E7%A8%8B)
x^1/2 + y^1/2 =a^1/2 ,设x=acos^4θ 化为参数方程把x^1/2 + y^1/2 =a^1/2 化为参数方程
x^1/2 + y^1/2 =a^1/2 ,设x=acos^4θ 化为参数方程
把x^1/2 + y^1/2 =a^1/2 化为参数方程
x^1/2 + y^1/2 =a^1/2 ,设x=acos^4θ 化为参数方程把x^1/2 + y^1/2 =a^1/2 化为参数方程
x^1/2 + y^1/2 =a^1/2
主要是表达y:
y=(a^1/2 - x^1/2)^2
=a(1- (cosΘ)^2)^2
=a(sinΘ)^4.
则x=a(cosθ)^4,y=a(sinΘ)^4.(a≥0).
1
1