题目内容
将椭圆按φ: ,变换后得到圆,则( )
A.λ="3," μ=4 | B.λ="3," μ=2 | C.λ="1," μ= | D.λ="1," μ= |
D
试题分析:由参数方程可得,,代入到椭圆方程中,可得,为,则,,则λ=1,μ=.
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题目内容
A.λ="3," μ=4 | B.λ="3," μ=2 | C.λ="1," μ= | D.λ="1," μ= |