椭圆(x^2/a^2)+(y^2/b^2)=1(a>b>0)的参数方程是?(φ是参数)
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![椭圆(x^2/a^2)+(y^2/b^2)=1(a>b>0)的参数方程是?(φ是参数)](/uploads/image/z/10031465-65-5.jpg?t=%E6%A4%AD%E5%9C%86%28x%5E2%2Fa%5E2%29%2B%28y%5E2%2Fb%5E2%29%3D1%28a%EF%BC%9Eb%EF%BC%9E0%29%E7%9A%84%E5%8F%82%E6%95%B0%E6%96%B9%E7%A8%8B%E6%98%AF%3F%EF%BC%88%CF%86%E6%98%AF%E5%8F%82%E6%95%B0%EF%BC%89)
椭圆(x^2/a^2)+(y^2/b^2)=1(a>b>0)的参数方程是?(φ是参数)
椭圆(x^2/a^2)+(y^2/b^2)=1(a>b>0)的参数方程是?(φ是参数)
椭圆(x^2/a^2)+(y^2/b^2)=1(a>b>0)的参数方程是?(φ是参数)
x=asinφ
y=bcosφ
X = a cos &
Y = b sin &
因为把他们代入恒等于1