题目内容
参数方程(为参数)化为普通方程是
A.2x+y4="0" | B.2x+y4="0," x[2,3] |
C.2xy+4="0" | D.2xy+4="0," x[2,3] |
B
解:因为参数方程,消去参数,可知化为普通方程是2x+y4="0," x[2,3] ,选B
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题目内容
A.2x+y4="0" | B.2x+y4="0," x[2,3] |
C.2xy+4="0" | D.2xy+4="0," x[2,3] |