02
ü
x 2 ( a x) = ( x + E) 2 a ( x + E) { } 2 a 3
2 y = ( 1 x )
Oq p Oq y + p 2 2 2qOy q O 2 2 2 rx + ro+ x + 2xO + O y 2 = 0 p P 2 2 rx + x y = 0 2 2 2 2qOy q O ro + 2xO + O 2 = 0 p P O 2 2qy Oq r + 2x 2 = 0 p P 2qy 2 = 0 P
1 2 y = ( 1 x ) 2 1 2