Expression 7: "x" squared equals 1 minus 2 "y"x2=1−2y
7
w=1/z^2: left parenthesis, StartFraction, left parenthesis, cos left parenthesis, "u" , right parenthesis , right parenthesis Over 2 left parenthesis, 1 plus cos left parenthesis, "u" , right parenthesis , right parenthesis , EndFraction , StartFraction, left parenthesis, negative sin left parenthesis, "u" , right parenthesis , right parenthesis Over 2 left parenthesis, 1 plus cos left parenthesis, "u" , right parenthesis , right parenthesis , EndFraction , right parenthesiscosu21+cosu,−sinu21+cosu
Expression 9: left parenthesis, 2 "y" , right parenthesis squared equals 1 minus 4 "x"2y2=1−4x
9
ちなみにz^2の描く図形は、はカージオイド
10
z^2: left parenthesis, 2 left parenthesis, 1 plus cos left parenthesis, "u" , right parenthesis , right parenthesis cos left parenthesis, "u" , right parenthesis , 2 left parenthesis, 1 plus cos left parenthesis, "u" , right parenthesis , right parenthesis sin left parenthesis, "u" , right parenthesis , right parenthesis21+cosucosu,21+cosusinu